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] /73Disp-Num
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    [1]  2022/11/10 23:08   60 years old level or over / An engineer / Useful /
    Purpose of use
    Research for book
    Comment/Request
    Shortest distance between uk and Europe?
    [2]  2022/11/04 08:13   20 years old level / An engineer / Very /
    Purpose of use
    Calculate distance between where we live now and where we lived less than a week ago.
    Comment/Request
    Nice tool!
    [3]  2022/11/02 02:10   20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    Calculating the distance between the closest points of South America & Africa
    [4]  2022/10/27 20:54   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    For an assignment, HI GUYS!!!, we are shooting cannonballs at pirates.
    [5]  2022/10/16 04:25   30 years old level / Self-employed people / Very /
    Purpose of use
    Calculating the distance from my front door to back home, as an expat.
    [6]  2022/10/08 00:30   60 years old level or over / A retired person / Very /
    Purpose of use
    Estimate distance Russian draft dodgers travel by boat to get from closest town in Siberia to Gambell, Alaska
    [7]  2022/09/14 22:06   50 years old level / A retired person / Very /
    Purpose of use
    Calculate distance between Cancun and Martinique
    [8]  2022/08/31 14:46   20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    checking to see how far apart my girlfriend and i will live next year
    [9]  2022/08/19 16:45   Under 20 years old / A retired person / Very /
    Purpose of use
    Calibrating my ICBM launcher
    [10]  2022/08/05 01:39   50 years old level / An engineer / Very /
    Purpose of use
    Fun! Thank you for putting this together.

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