, nautical miles and knots or statute miles and miles per hour. 13 miles. R is the radius of Earth (approximately 6,371 kilometers) h denotes your height above sea level. On a small lake — say, 2. The formula for converting nautical miles to other units involves multiplying the distance in nautical miles by the appropriate conversion factor. mil. Example 1: A fast 30m yacht cruising at 20 knots ( Lady Amanda) will consume roughly 400-500 l/hour (more depending on engine type). There are several ways to calculate the distance from Seoul to Seattle. The distance between Seattle (Seattle–Tacoma International Airport) and Tampa (Tampa International Airport) is 2520 miles / 4056 kilometers / 2190 nautical miles. Netpas Distance provides 12,000 ports information with their locations and offers 72 0. 15 land miles. The driving distance from Seattle (SEA) to Sacramento (SMF) is 732 miles / 1178 kilometers, and travel time by car is about 14 hours 4 minutes. This is equivalent to 2925 kilometers or 1579 nautical miles. The symbol for nautical mile is M or NM or nmi. What is a nautical mile (M, NM, or nmi)? A nautical mile is a non-SI unit of Length or Distance. 7795276. Popular distances from Seattle (SEA) Distance from Seattle to Bangalore (Seattle–Tacoma International Airport – Kempegowda International Airport) is 8078 miles / 13000 kilometers / 7020 nautical miles. 3. Air distance is the bird fly distance between two locations which is calculated with the great circle formula. Shipping Distance & Time Calculator. See also a map, estimated flight duration, carbon dioxide emissions and the time difference between Seattle and Singapore. The distance between Phoenix (Phoenix Sky Harbor International Airport) and Seattle (Seattle–Tacoma International Airport) is 1107 miles / 1781 kilometers / 962 nautical miles. The symbol for nautical mile is M or NM or nmi. Free trial is available and you will just like this amazing application once you. When calculating the cost of a voyage, it is important to find out how long a ship will take to steam from one port to another. 821 kilometers; 4533. calculate Calculate sea route and distance for any 2 ports in the world. We will continue to invest in the sea route calculator since a sea route should be one of the backbone features in any maritime software. In this raster we have to indicate the resolution, in our case it is of 5000m, the projection and the extension of the raster. To calculate the speed over an irregular distance, divide the total distance traveled in nautical miles by the total time elapsed. convert decimal degrees to degrees, minutes, seconds. At sea, the distance commonly is measured in nautical miles (nm), whereas one nm is exactly 1852 meters. 293 miles; 1690. The distance between Juneau (Juneau International Airport) and Seattle (Seattle–Tacoma International Airport) is 909 miles / 1463 kilometers / 790 nautical miles. Distance = 12 kts x 2. 0 Hours. Next. All distances shown are approximate berth to berth distances (not Pilot Station to Pilot Station). Rounded. If you look for an API that gives you the shortest path between two coordinates on sea, there is AquaplotThe distance between Seattle (Seattle–Tacoma International Airport) and Miami (Miami International Airport) is 2724 miles / 4384 kilometers / 2367 nautical miles. (DCA) to Seattle (SEA) is 2751 miles / 4427 kilometers, and travel time by car is about 49 hours 30 minutes. Use the following converter to convert between nautical miles and other measurements of distance, such as miles. I am trying to calculate shortest distance from any ship position to coastline in nautical miles using this zip file. 852 kilometers). 18,335. Sort By Name Sort By Country. Here are two standard methods: Vincenty's formula (applied above) 866. 1508 miles. 852 kilometers Multiply Statute Miles by 0. The distance between Seattle (Seattle–Tacoma International Airport) and Orlando (Orlando International Airport) is 2554 miles / 4110 kilometers / 2219 nautical miles. 00049374 nautical miles. Distance = 16. It is approximately one minute of arc measured along any meridian. Popular distances from Seattle (SEA) Distance from Seattle to Manila (Seattle–Tacoma International Airport – Ninoy Aquino International Airport) is 6661 miles / 10720 kilometers / 5788 nautical miles. Fuel Consumption (LPH) Fuel Cost (€/Litre) Total Distance. It is approximately one minute of arc measured along any meridian. The essential pirate. Calculate the total distance using great circle sailing 3. 780 kilometers; 1331. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. 15. 3 hours. Distance = (40 x 25) / 60 minutes in an hour. nautical and statute miles, fathoms, feet, meters and more. 464 kilometers; 752. Popular distances from Seattle (SEA) Distance from Seattle to London (Seattle–Tacoma International Airport – London Heathrow Airport) is 4800 miles / 7725 kilometers / 4171 nautical miles. Transmate's free ocean distance calculator is an invaluable tool for professionals in the freight and logistics industry. Route Planner improves operational efficiency by route optimisation for any sea passage. Try the Simple Fuel Calculator and test what will be the best buy. The driving distance from Seattle (SEA) to Washington D. Transmate's freight rate management and tendering platform can be used to quickly and accurately calculate distances, costs, and CO2 for shipment purposes. Each minute of a degree is equal to a nautical mile. Latitudes and longitudes may be entered in any of three different formats, decimal degrees (DD. We return […]What is a nautical mile (M, NM, or nmi)? A nautical mile is a non-SI unit of Length or Distance. - Distance by Vertical Angle Measured Between Sea Horizon and Top of Object Beyond Sea Horizon - Distance by Vertical Angle Measured Between Waterline. Here, from two values and units, the third value can be calculated. The distance between Washington D. Your flight direction from ORD to SEA is Northwest (-65 degrees from North). The average of frequent measurements taken throughout the day proved to be a highly. Popular distances from Seattle (SEA) Distance from Seattle to Kona (Seattle–Tacoma International Airport – Kona International Airport) is 2688 miles / 4326 kilometers / 2336 nautical miles. The nautical mile (symbol nmi, M or NM) is a non-SI unit of length used in navigation (both marine and aerial). The driving distance from Juneau (JNU) to Seattle (SEA) is 1411 miles / 2270 kilometers, and travel time by car is about 35 hours 54 minutes. 51 nautical miles. For speed, it can convert knots to miles per hour, kilometers per hour, feet per second or meters per second. 15 miles. Facebook. For example, if a boat traveled 18 nautical miles in 12 hours, its speed is 1. 000. e. The distance between Seattle (Seattle–Tacoma International Airport) and New York (New York John F. As dimension for the speed, knots (kn) is used, one knot is one nautical mile per hour. Tip: To move a point or path, click and drag it. More than 4000 sea ports. A ship leaves Port A at 08:00 on 24 July and is heading to Port B (distance 5760 nautical. A cable length is the length of a ship's cable, about 600 feet. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. Tanker (e. There are several ways to calculate the distance from Seattle to Honolulu. 3. To find the Distance use the formula of D=ST/60. Also you will find some providers that give you distances between ports depending on AIS data like marinetraffic. Calculates the speed in knots and the distance in nautical miles at shipping. 00053996 nautical miles. Here are two standard methods: Vincenty's formula (applied above) 1448. To convert 18 knots to feet per hour, we must multiply 18 knots by 6076 ft. 852 = 18. Thus, these equivalents evolved: a nautical mile became 1. 151 mph or 0. Popular distances from Seattle (SEA) Distance from Seattle to London (Seattle–Tacoma International Airport – London Heathrow Airport) is 4800 miles / 7725 kilometers / 4171 nautical miles. net utilizes Sea Distance Calculator from port to port, Nautical Chart, Interactive map of the major 300 rivers, seas and ocean objects and regions, Maritime Locator useful to spot, find out and contact Shipyards, Agents, Ship Suppliers, Bunkerers and nearby Sea Ports in the. Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. Latitudes and longitudes may. Here are two standard methods: Vincenty's formula (applied above) 4768. The driving distance from Dallas (DFW) to Seattle (SEA) is 2085 miles / 3355 kilometers, and travel time by car is about 37 hours 0 minutes. The distance between Seattle (Seattle–Tacoma International Airport) and Newark (New York Newark Liberty International Airport) is 2402 miles / 3865 kilometers / 2087 nautical miles. The distance between Seattle (Seattle–Tacoma International Airport) and Los Angeles (Los Angeles International Airport) is 954 miles / 1535 kilometers / 829 nautical miles. The distance between Seattle (Seattle–Tacoma International Airport) and Washington D. C. The driving distance from Phoenix (PHX) to Seattle (SEA) is 1420 miles / 2286 kilometers, and travel time by car is about 26 hours 35 minutes. 15 statute miles. It does not have an agreed upon symbol; some of the symbols used are M, NM, nmi, and nm. 293 miles; 1690. Use this easy and mobile-friendly calculator to convert between meters and nautical miles. The nautical mile calculator is a handy tool to help you calculate the distance from and to nautical miles (nmi). A nautical mile is a non-SI unit of Length or Distance. That’s about 0. Map of ports all around the world, Enter two ports, choose speed and find out how long it will take. Port of Miami , United States to Port of Nassau, Bahamas: 258 nautical miles. A nautical mile is 1,852 meters or 1. To calculate a company’s CO 2 footprint from ocean container transport: 1. 86896 to obtain Nautical MilesRoute Planner improves operational efficiency by route optimisation for any sea passage. Indonesia Driving Distance Calculator to calculate driving distance between cities, towns or villages in Indonesia and Mileage Calculator, Distance Chart, Distance Map. 5 feet. To get waypoint information, enter the limitations and. 83 km) north of the equator, so it is located in the northern hemisphere. C. If you want to know the distance to the horizon, first calculate your height of eye. Here are two standard methods: Vincenty's formula (applied above) 953. 9. You can plan your sailing journey down to the last detail with our interactive distance calculator. (see red lines in picture below for reference. Have you ever wondered how you can calculate how far a sailboat can sail in a day? A sailboat can travel 144 nautical miles in 24 hours with an average cruising speed of 6 knots, which is realistic for a. The driving distance from Seattle (SEA) to Phoenix (PHX) is 1420 miles / 2286 kilometers, and travel time by car is about 26 hours 33 minutes. [2] [3] Historically, it was defined as the meridian arc length corresponding to one minute ( 1 60 of a degree) of latitude at the equator, such that Earth's polar circumference is very near to 21,600 nautical miles (that. The driving distance from Seattle (SEA) to Washington D. Exactly 1. 2. Seametrix uses the most sophisticated calculating algorithms, running on cutting-edge servers, and provides by far the most accurate sea distance results when it comes to nautical distances between ports! Air Distance & Flight Time Calculation The Great Circle Mapper. The simple response will give you distance in nautical miles and whether the ship must pass through either the Panama Canal, Suez canal or both. Distance traveled by other boaters could vary. You can change between miles or km at any time. It took you 40 minutes and you measured on the chart and know the distance is 11. Similar to the speed and distance measurement on land, the nautical mile and knot explain the movement of a vessel at sea. (IAD) is 2740 miles / 4409 kilometers, and travel time by car is about 49 hours 14 minutes. Indonesia's maritime territory and exclusive economic zone. 1 billion distance data with (S)ECA, Weather Forecast, Piracy Alert and many other powerful functions. A nautical mile is based on the circumference of the Earth and is used by sea. I. The driving distance from Denver (DEN) to Seattle (SEA) is 1317 miles / 2119 kilometers, and travel time by car is about 22 hours 53 minutes. The lunar distances method uses this angle and a nautical almanac to calculate Greenwich time if so desired, or by extension any other time. Have you ever wondered how you can calculate how far a sailboat can sail in a day? A sailboat can travel 144 nautical miles in 24 hours with an average cruising speed of 6 knots, which is realistic for a 35-45-foot sailboat. It ends at Seattle-Tacoma International Airport in Seattle, Washington. Just type the number of miles into the box and hit the Calculate button. The map can be centred around any of the below starting points - click your home base and get started! :) TOP TIP: If you’re after a leisurely sailing holiday (doing 4-5. 129 nautical miles; Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. e. The driving distance from Seattle (SEA) to Newark (EWR) is 2831 miles / 4556 kilometers, and travel time by car is about 50 hours 45 minutes. 1,000,000. Inside Passage • Seattle to Cape Spencer (Table 34) is 976 miles • Cape Spencer to Anchorage (Table 33) is 641 miles • Seattle to Anchorage is 1,617 miles . Distance calculator helps you to find how many miles from a city to an another city on map. You must always convert odd times into hours and tenths of an hour. 96. [2] [3] Historically, it was defined as the meridian arc length corresponding to one minute ( 1 60 of a degree) of latitude at the equator, such that Earth's polar circumference is very near to 21,600 nautical miles (that. This calculator works out how far you can see at sea at a variety of locations around the UK coastline, including Plymouth Hoe, the top viewing platforms of Portsmouth’s Spinnaker Tower. To convert 50 kilometres to nautical miles, we divide by 1. 609344 kilometers. 852 kilometers. Sea route & distance. At the bottom, you can find the total distance in miles (mi) and kilometers (km). If you need to get that information to a degrees, minutes and. g. When done: On the card at the bottom, click Close; Knowing the average fuel consumption (engines, generators…) at cruising speed and the price per litre (diesel price here + add local fee for yacht 0. Divide Time into Distance to find Speed. A nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Time Zones Map. What is a nautical mile (M, NM, or nmi)? A nautical mile is a non-SI unit of Length or Distance. 43 km) How far is it from Mediterranean-sea to the South Pole? From Mediterranean-sea to the South Pole, it is 8,637. To start, simply. 00016458 nautical miles. This is equivalent to 2 251 kilometers or 1,216 nautical miles. It does this by. Boatbookings have created the leading online yacht charter route planner, distance and fuel calculator, so you can see your exact cruising plan and itinerary in unrivalled detail. Length of a Degree of Latitude and Longitude 2. One nautical mile. Example 16 . The distance between Washington D. 15078. Total Distance: Kilometers. We note: The average latitude: To the accuracy of 1 mile: The Route:. This is equivalent to 1 535 kilometers or 829 nautical miles. Nautical Calculator is an easy to use app built specifically for your iPhone and iPad that helps you. Nautical units of speed. 5°5'E (2015) ANNUAL DECREASE 8' Edit. 150779448 to get the equivalent in nautical miles. The strength of our navigational route network, lies in its thoroughness and distance accuracy. What is the relationship between km and nautical miles? 1 nautical mile is approximately equal to 1. 20,000 leagues would be equivalent to 60,000 nautical miles or approximately 69,000 statute miles. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. Because the Earth is not a true sphere, one minute of latitude arc on pole differs from one minute latitude arc near the equator. Calculate the distance, fuel consumption, and cost of your next boating trip. Converting a distance measured in meters to one measured in nautical. If you want to go back a step, or start again, just click the buttons below the map. Later, the nautical mile was defined accurately as 1,852. Nautical mile converter. It is defined as exactly 1,852 meters or 1. C. The ship types and units are as follows: Container (e. 25 or 0. How To Use. Aegina Some 18 nautical miles from Athens, Aegina is a popular first and/or last port of call for sailing charters starting and ending in Athens. A nautical mile is slightly longer than a mile on land, equaling 1. Our conversions provide a quick and easy way to convert between Length or. The routes selected by the author are suitable for boats up to 48 inches draft. So the distance to horizon, based on this, is 2. Imray) have a ‘Scale’ on the chart but if this is not available then you will need to measure the distance. The sailing distance calculator allows you to estimate the distances of your sea journeys in nautical miles as well as the approximate time you need between 2 stops. A very quick sea route calculator showing you the distance in nautical miles from any of the vessels AIS position to any port. There are several ways to calculate the distance from San Diego to Seattle. 15. Distance = 29 nautical miles. To convert 15m to hours, we divide by 6 and round off. 852 kilometers (km) = 1852 meters. com provides flight time and distance calculators free for the air charter industry. Here are two standard methods: Vincenty's formula (applied above) 2474. It is approximately one minute of arc measured along any meridian. A nautical knot is a unit of speed equal to one nautical mile per hour (1 knot = 1. S. More than 4. SEA DISTANCE CALCULATOR. The driving distance from Seattle (SEA) to Chicago (ORD) is 2036 miles / 3276 kilometers, and travel time by car is about 35 hours 59 minutes. Its nominal range is the distance at which it can be seen when meteorlogical visibility is 10 nautical miles. The total straight line flight distance from ANC to SEA is 1,448 miles. Speed profile, ECA zone avoidance, and gateway preference help you to compare. Each navigation method is calculated by a different server, with different data sets and algorithms, and offers highly accurate nautical mile calculation results, for either navigational method. 15 / 6 = . To start, simply right-click anywhere on the Live. 978 miles; 11949. By performing the calculation using the actual number of knots that unspooled, the sailors were able to measure the ship’s speed. Boatbookings have created the leading online yacht charter route planner, distance and fuel. Then draw a route by clicking on the starting point, followed by all the subsequent points you want to measure. 1 U. There are several ways to calculate the distance from San Jose to Seattle. survey miles. There are 0. We did miles/miles per hour here. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. Use this easy and mobile-friendly calculator to convert between miles and nautical miles. This calculator will help you calculate meridional parts which are used in Mercator charts and Mercator navigation. Seametrix is the only sea distance calculator that offers correct and real-world Rhumbline & Great-Circle nautical mile calculation results. 0. Coincidentally, the time it took to travel one minute of latitude in one hour became one knot. See how far it is between each place of interest and all the islands and towns you will. Distance in miles gives you the mileage between cities by this Turkey mileage calculator. A statute mile equals 5,280 feet, whereas a nautical mile is 6,076 feet. There have historically been different nautical miles used and, thus, different variations of knots. Flight distance is computed from a GPS-accurate great circle formula, which gives you the straight line distance "as the crow flies". 0 Days. Whether you're looking for the length of a degree, the distance of an object, horizon, dip of the sea, or meridional parts, this Nautical Calculator makes. 32 mi (13,900. The distance between Seattle (Seattle–Tacoma International Airport) and Tampa (Tampa International Airport) is 2520 miles / 4056 kilometers / 2190 nautical miles. In order to see the sea route you wish to travel, enter the starting port in the location box and proceed to plan your route by adding the rest of the places you wish to visit. Air navigation and its history are. Indeed even the most advanced navigation system uses these same elements to tell you where you are, calculate the direction you need to steer, and estimate the distance and time you will arrive at a point some time in. First zoom in, or enter the address of your starting point. Here are the basic conversion formulas for nautical. nmi: is the symbol of nautical. The distance between Seattle (Seattle–Tacoma International Airport) and Palm Springs (Palm Springs International Airport) is 987 miles / 1589 kilometers / 858 nautical miles. Highly doubt this is correct as Sea of Thieves does not apply current vectors to ships. North Atlantic Ocean. The distance between Vancouver (Vancouver International Airport) and Seattle (Seattle–Tacoma International Airport) is 127 miles / 205 kilometers / 110 nautical miles. 5 knots. Finally, the nautical mile per hour formula can also be used to calculate the speed of a boat over an irregular distance. Sea+InlandRouting Get the most accurate distances to better predict arrival times, monitor fuel consumption, estimate Co2, compute deviation costs. The nautical mile is abbreviated as M, NM, nm, or nmi. Think of it this way: the bigger the boat, the bigger the fuel compartment. This Great Circle Distance Calculator gives an answer in nautical miles. The actual number is 1. It ends at Seattle-Tacoma International Airport in. A nautical mile is a non-SI unit of length or distance. Go to Iso4app web application. The driving distance from Washington D. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. One mile = 0. This unit is typically used in maritime and aviation. Enter latitude and longitude of two points, select the desired units: nautical miles (n mi), statute miles (sm), or kilometers (km) and click Compute. Distance and a country’s position within shipping networks Shipping goods over a longer distance requires more time (capital costs) and fuel (operating costs). 852 kilometers. Database containing ports, blocks and offshore installations. The International Nautical Mile, also known as the nautical mile or sea mile, is a unit of measurement used primarily in navigation and maritime contexts. 15078 statute miles. The unit is named after the length of a ship's. The driving distance from Seattle (SEA) to Minneapolis (MSP) is 1673 miles / 2692 kilometers, and travel time by car is about 29 hours 19 minutes. The main functions are: - Given two coordinates, great circle and rhumb line. 055 kilometers; 1258. Philippines Distance Chart (Distance Table): For your quick reference, below is a Distance Chart or Distance Table of distances between some of the. 951 nautical miles; Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. 1508 land-measured (or statute) miles (1. This is because one degree of latitude is approximately 69 statute miles in length. 2. 9999136628534 cable. 03 meters) on land, or 3 nautical miles at sea. Here are two standard methods: Vincenty's formula (applied above) 1977. It depends how high above the sea you are. In these calculations, the distance between the ports and the speed of the ship are important. 1508 statute miles = 1. 366 nautical miles; Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet. Double the speed to 120 and you cover twice that distance, or 17 nautical miles. Calculating the "As the Crow Flies" distance is a matter of using Great Circle formula. The calculation of cruising distances were determined from NOAA and Canadian Hydrographic Service digital charts in BSB format using the Fugawi Marine ENC™ navigation application. net utilizes Sea Distance Calculator from port to port, Nautical Chart, Interactive map of the major 300 rivers, seas and ocean objects and. Everyone. There are 0. 151 miThe distance between Seattle (Seattle–Tacoma International Airport) and Minneapolis (Minneapolis–Saint Paul International Airport) is 1399 miles / 2251 kilometers / 1216 nautical miles. You can use it free of charge!. Flying time between cities. Distances in this table are in nautical miles based on the International Nautical Mile of approximately 6,076. Searoutes is committed to making freight transportation and decarbonation work together for a greener and more sustainable international trade. 3: 20/10/2008: Added drop down map type option: 4. Air distance is the bird fly distance between two locations which is calculated with the great circle formula. 365 miles; 5829. Foreign flag ships enjoy the right of innocent passage while transiting the. Straits Of Florida. There are 0. Memorable yachting experiences start with BednBlue. 486 kilometers. In terms of statute or land miles, a nautical mile represents 1. The reverse is also true, whilst rowing across the Atlantic, the very. The driving distance from Seattle (SEA) to Fort Lauderdale (FLL) is 3314 miles / 5334 kilometers, and travel time by car is about 58 hours 42 minutes. One mile = 0. The nautical mile, on the other hand, is mostly used for sea and air navigation. Map with JOSM Remote; View. Distance Calculators. For example: If you are flying at 100 knots true airspeed in a zero wind condition, nautical ground miles will equal nautical air miles. How many nautical miles in 1 miles? The answer is 0. find start port: find destination port: start typing to see the suggestions. More than 4000 sea ports. Note that in air and marine navigation, a nautical mile is used as a unit of distance because the nautical mile is one minute of latitude. Driving directions and travel distance calculation for Indonesia. Determine the distance traveled between port of origin and port of destination using Dataloy or other nautical distance resources. Distance between cities or 2 locations are measured in both kilometers, miles and nautical miles at the same time. 2/0. You can then use geosphere::dist2Line to get the distance from your points to the coastline. For example, if a boat traveled 18 nautical miles in 12 hours, its speed is 1. What is a mile (mi)? A mile is. S. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. Includes air line, route, centre, route planner, flight route and interactive map. Height of Eye = 10 feet Geographic Range = 11. Distances for Berwick-upon-Tweed, Dartmouth, Penzance and Sunderland have been calculated using the. If your eyes are around 3 metres above sea level, they are able to discern the following (at different distances): 1 nautical mile: crew members can be recognised on board another boat, sail rigging can be seen. This comes from the definition of the meter as a based unit in the metric system, and the definition of the nautical mile which is. Distance between locations: Statute Miles Nautical Miles Kilometers. knots. I noticed that one of your example points was in France so you may need to expand the coastline data beyond just the UK (can be done by playing. 1 nautical mile = 1. Then the main problem is converting the Google Map. The nautical mile is abbreviated as M, NM, nm, or nmi. The formula to calculate distance to the horizon is: 1. 1 nautical mile is the angular distance of 1 minute of arc on the earth's surface. The total straight line flight distance from SFO to SEA is 679 miles. 12105209844 miles. 852 kilometers. Remember, one mile equals about 0. Free trial is available and you will just like this amazing application once you. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a maximum of nearly 6,378 km (3,963 mi) (equatorial radius, denoted a) to a minimum of nearly 6,357 km (3,950 mi) (polar radius, denoted b). • The speed of a vessel over a measured mile can be calculated by the formula: S 1. 852 km/h (approximately 1. We aim at helping shippers, BCOs, forwarders and carriers identify the greener routes to reduce their transport carbon footprint, all modes. 42 hours. However, as you might expect, this is not. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. 852 km = 1 nm (or nmi) using other commonly employed symbol conventions.