Google Map API how to subtract 1km from coordinates?

Question

Google

The task is to subtract 1 km from the width
of our coordinates:
[51.526613503445766, 46.02093849218558]
how to find out the values ​​of one kilometer in google map api?
Answer: 0.010000 = 1 km

Answer 1

google maps uses the WGS84 coordinate system . In such a system , the dependence of distance on angles is not linear. Here is an example board

Latitude	1° Latitude	1° Longitude
0°	110.574 km	111.320 km
15°	110.649 km	107.550 km
30°	110.852 km	96.486 km
45°	111.132 km	78.847 km
60°	111.412 km	55.800 km
75°	111.618 km	28.902 km
90°	111.694 km	0.000 km

Answer 2

Answer: 1 km
0.00898° in latitude
0.01440° in longitude