Distance between two places on the earth Calculator

Calculates the distance and azimuth between two places from latitudes and longitudes.

Calculation assumes that the Earth is a sphere with a radius of 6378km.
Input negative degree for west longtitude and south latitude.
Distance between two places on the earth
A: Longitude
    1. Latitude
B: Longitude
    1. Latitude
    1. [ Earth's radius r
    2. km ]

Compass from A to B

place A(x1, y1)、place B(x2, y2)
    Distance between two places on the earth
    [1-10] /48Disp-Num
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    [1]  2021/04/06 03:45   Male / 30 years old level / An engineer / Very /
    Purpose of use
    Finding the answer to the question: "What is the farthest place you have traveled to?"
    [2]  2021/04/01 09:38   Male / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Godzilla vs Kong
    [3]  2021/03/15 01:54   Male / Under 20 years old / Elementary school/ Junior high-school student / Useful /
    Purpose of use
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    [4]  2021/03/01 08:41   - / 60 years old level or over / Others / Useful /
    Purpose of use
    Calculate error between published coordinates and GPS coordinates.
    [5]  2021/01/15 12:51   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    Fin.ding distance for two points to compare to an airliners maximum range, and see if there was enough fuel left over to turn around and return to the original airport just before landing
    [6]  2020/12/06 06:37   Male / 20 years old level / Others / Very /
    Purpose of use
    calculate distance between two points in my homebrew world with a custom radius for Dungeons and Dragons overland travel
    [7]  2020/10/09 10:40   Male / 30 years old level / A teacher / A researcher / Very /
    Purpose of use
    To see how far my boyfriend is away from me. 9,250 miles :(
    [8]  2020/09/10 18:26   Male / 20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
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    [9]  2020/09/01 06:33   Female / 30 years old level / Others / Useful /
    Purpose of use
    Son asked how far away his aunt lives. 7000 km!
    [10]  2020/08/31 00:03   Female / 30 years old level / Others / Useful /
    Purpose of use
    I wanted to see how far away I lived from my mother - over 9000km.

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