Earth's gravity by height above the ground

Name: Earth's gravity by height above the ground
Creator: Unlabeled
License: Public domain (U.S. government work)

At 400 km, where the International Space Station flies, gravity is still 89% of what it is on the ground. Astronauts float because they are falling around the Earth, not because gravity is gone.

What does this axis measure?

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y ↑: Gravity (m/s²)
x →: Height above the ground (km)

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The data: 37 points

Height above the ground (km)	Gravity (m/s²)
0	9.82
1,000	7.336
2,000	5.688
3,000	4.539
4,000	3.706
5,000	3.083
6,000	2.605
7,000	2.23
8,000	1.93
9,000	1.687
10,000	1.487
11,000	1.321
12,000	1.181
13,000	1.062
14,000	0.961
15,000	0.873
16,000	0.796
17,000	0.73
18,000	0.671
19,000	0.619
20,000	0.573
21,000	0.532
22,000	0.495
23,000	0.462
24,000	0.432
25,000	0.405
26,000	0.38
27,000	0.358
28,000	0.337
29,000	0.319
30,000	0.301
31,000	0.285
32,000	0.271
33,000	0.257
34,000	0.245
35,000	0.233
36,000	0.222

Source: Computed: g = GM / (R + h)², with GM and the Earth's mean radius from NASA's Earth Fact Sheet (NSSDCA, Goddard Space Flight Center)
Licence: Public domain (U.S. government work)
Read: 2026-09-29
Drawn: 37 points as the puzzle showed them · line

Ran in puzzle #32 on October 28, 2026. Play it

Earth's gravity by height above the ground

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