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Straight Sailing Marine Distance Calculator

This calculator requires the use of Javascript enabled and capable browsers. This script creates a calculated distance result from starting point A to destination point B, determined by latitude and longitude coordinates designated in decimal degrees. Once you enter your decimal degree location for latitude and longitude, enter the N, S, E, and W correct direction (capitalization and spacing is not critical) AFTER the decimal degree entry in the same field box. (If you must use "0" for a latitude , use an "N" for the hemisphere indicator.) Enter the values in decimal degrees. DDD.DDDD E (longitude) and DD.DDDD N (latitude) as examples. Add the directional identifier (N, S, E or W, upper or lower case) with or without a space after the numeric portion of the entry entry. Click on Calculate. Results are given in statute miles, nautical miles and kilometers. This calculation uses the straight sailing method of distance between two points on the water, and should be use for distances of less than 1,000 miles on the water, preferably not near the poles. If you need to get that information to a degrees, minutes and seconds format, use the GPS Converter, or for distance information in a slightly different format and with a great circle method of calculation, try our GPS Latitude and Longitude Distance Calculator.

How about a short hypothetical trip from the port of Los Angeles in southern California to Santa Catalina Island, off of the coast? The coordinates for the port of LA are latitude, 33.711N and longitude, 118.250W. The port of Avalon on Santa Catalina island has the coordinates of 33.342N latitude and 118.326W longitude. Those are the defaults for our calculator. Click on Calculate and enjoy the trip!

Unit
Number
Required Data Entry
Starting Point Coordinates
Latitude
Longitude
Destination Point Coordinates
Latitude
Longitude


   
Calculated Results
Distance Statute Miles
Distance Nautical Miles
Distance Kilometers
Updated 8.15.11


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