Newtonian 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-11

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.

Universal constants

Reduced Planck constantNewtonian constant of gravitationStandard acceleration of gravityVacuum electric permittivityVacuum magnetic permeabilityCharacteristic impedance of vacuum

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All physical constants

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