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Compute lat/lon given radial and distance from a known point. Enter lat/lon of initial point, true course and distance. Select distance units and earth model and click "compute". Lat/lons may be entered in DD.DD, DD:MM.MM or DD:MM:SS.SS formats. Note that the starting point cannot be a pole.
- Ed Williams' Aviation Page
Ed Williams' Aviation page. My 182 . My aviation formulary...
- Ed Williams' Aviation Page
Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
Javascript Great Circle Calculator using ellipsoidal earth models.
Calculate online the great circle, the shortest distance between two locations on Earth.
This calculator will find the straight-line (great circle) distance between two locations of any kind: street addresses, city names, ZIP codes, etc. (The coordinates of the locations are provided by the Google Geocoding API.)
Calculation of Great Circle Distance. Enter Longitute and Latitute of both places (decimal degrees): Long1: Lat1:
This calculator computes the great circle distance between two points on the earth's surface. The program is operated by entering two geographic points and then pressing the Calculate button. The entry form allows you to enter geographic position in degrees, minutes, and seconds.
