Which exoplanet has the strongest surface gravity?

Among rocky worlds with a physically consistent measured mass and size, Kepler-123 b has the strongest surface gravity known: 6.4 times Earth's. Everything about Kepler-123 b

Strongest surface gravity known
Kepler-123 b
6.4x Earth gravity · 3,332 ly from Earth
The top ten
#WorldSurface gravityDistance
★ 1Kepler-123 b6.4x Earth gravity3,332 ly
2Kepler-287 c6.2x Earth gravity2,726 ly
3TOI-1853 b6.1x Earth gravity538 ly
4Kepler-462 b6.0x Earth gravity1,946 ly
5Kepler-297 b5.9x Earth gravity2,257 ly
6Kepler-282 e5.8x Earth gravity4,363 ly
7Kepler-277 c5.7x Earth gravity3,185 ly
8TOI-332 b5.6x Earth gravity727 ly
9Kepler-32 d5.5x Earth gravity1,056 ly
10Kepler-145 b5.3x Earth gravity1,849 ly
How we know

Gravity is computed from mass and size, and this record only admits worlds where those two numbers are physically consistent: together they must imply a density in the rock-to-iron range. That gate matters because the raw table is full of minimum masses sitting on tiny radii, implying impossible densities and gravities that were never real. Where a mass is a minimum (the m·sin i method), the gravity is a floor and reads "at least".

For comparison, Mars pulls at 0.38 g and our Moon at 0.17 g. What could unseat this record: a newly weighed super-Earth whose measured mass and radius both check out; mass measurements improve every year.

Keep exploring: all records · the worst places to visit · what would you weigh there?