Home › Reference › Newtonian constant of gravitationNewtonian constant of gravitation = 6.674 30 × 10−11 m³·kg⁻¹·s⁻²
Symbol G
Value 6.674 30 × 10−11
Unit m³·kg⁻¹·s⁻²
Uncertainty 0.000 15 × 10⁻¹¹
Copy-ready 6.67430e-11Copy Relative uncertainty about 2 parts in 100 000 — poor for a fundamental constant, because gravity is extraordinarily weak and hard to isolate in the lab.
NIST, Fundamental Physical Constants — Complete Listing (2022 CODATA adjustment) , retrieved 2026-07-26.
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