Physical Constants Metrics
한국어
Other pages in this series (31)

Core constant

G · Newtonian constant of gravitation

뉴턴 중력 상수

Takeaway
  • The relative standard uncertainty fell by a factor of about 21 from the 1969 to the 2022 edition (4.6×10⁻⁴ → 2.2×10⁻⁵): the error bars narrowed that much.
  • Of 9 earlier editions with a measured value, 1 has the 2022 value outside ±1σ (the error bar) and 1 outside ±2σ (the bar doubled); the normal expectation is about 1 in 3 and 1 in 22.
  • The largest move between editions came in 2014→2018, at 0.6 times the combined standard uncertainty of the two editions (|z| = 0.6).
Unit
m³ kg⁻¹ s⁻²
Note
—
M1
Half-life (years): 12.18 (7.12–42.21)
Value ±1σ by edition2022
−10⁻²−10⁻³−10⁻⁴0+10⁻⁴+10⁻³+10⁻²1969197319861998200220062010201420182022
Relative deviation from the 2022 value (symmetric-log axis). Open circles: the error bar does not reach the 2022 value. Squares: exact.
Editionyear of the recommended values (data cut-off)As printedexactly as in the source table; digits in parentheses are the standard uncertainty in the last digitsStandard uncertaintyhalf-width of the error bar (±1σ)Relative standard uncertaintystandard uncertainty ÷ |value|: bar width relative to the valueExactfixed by definition, uncertainty zeroz vs previous editionmove from the previous edition ÷ combined standard uncertainty of the twoz vs 2022(2022 value − this value) ÷ this edition's standard uncertaintySource locationpage and table of the paper, or file and line of NIST's table
19696.6732(31) e-113.1×10⁻¹⁴4.6×10⁻⁴0.3548478 table XXXII
19736.6720(41) e-114.1×10⁻¹⁴6.1×10⁻⁴−0.23350.5610719 table 33.1
19866.67259(85) e-118.5×10⁻¹⁵1.3×10⁻⁴0.14092.0118codata86 p.8 table 2
19986.673(10) e-111.0×10⁻¹³1.5×10⁻³0.04090.13001998 ASCII:239
20026.6742(10) e-111.0×10⁻¹⁴1.5×10⁻⁴0.11940.10002002 ASCII:240
20066.674 28(67) e-116.7×10⁻¹⁵1.0×10⁻⁴0.06650.02992006 ASCII:241
20106.673 84 e-118.0×10⁻¹⁵1.2×10⁻⁴−0.42170.57502010 ASCII:254
20146.674 08 e-113.1×10⁻¹⁵4.6×10⁻⁵0.27970.70972014 ASCII:254
20186.674 30 e-111.5×10⁻¹⁵2.2×10⁻⁵0.63880.00002018 ASCII:263
20226.674 30 e-111.5×10⁻¹⁵2.2×10⁻⁵0.00002022 ASCII:264