Planck mass energy equivalent in GeV
UniversalMeasured
= 1.220 890(14) × 1019 GeV
- Value
- 1.220 890 × 1019 GeV
- Standard uncertainty
- 1.4 × 1014 GeV
- Relative uncertainty
- 1.1 × 10−5 (11 parts per million)
- Status
- Measured
- Symbol
- Source
- CODATA 2022 via NIST · NIST entry
Use in a calculation
Plain
LaTeX
Python
# Planck mass energy equivalent in GeV, CODATA 2022 (NIST)
planck_mass_energy_equivalent_in_gev = 1.22089e19 # GeV, standard uncertainty 1.4e14
# SciPy: scipy.constants.physical_constants['Planck mass energy equivalent in GeV']What it is
The Planck mass energy equivalent expressed in giga-electronvolts.
In other units
| Unit | Value | |
|---|---|---|
| CGS (cm2 g s−2) | 1.956 081 × 1016 | |
| kJ kilojoule | 1 956 081 | |
| MJ megajoule | 1956.081 | |
| kcal kilocalorie (food Calorie) | 467 514.7 | |
| Wh watt hour | 543 356 | |
| kWh kilowatt hour | 543.356 | |
| Btu British thermal unit (IT) | 1 854 007 |
Converted with ConstantID's unit table; digits are rounded to the precision of the value, and a long exact value is rounded only for display. The relative uncertainty is unchanged by conversion to an exactly defined unit.
How the value changed, 1998–2022
Each point is one CODATA adjustment, plotted as its difference from the 2022 value; the bars show one standard uncertainty (an arrowhead means the bar runs off the chart).
Relative uncertainty
| CODATA | Value (uncertainty) | Relative uncertainty | Change from previous |
|---|---|---|---|
| 2022 | 1.220 890(14) × 1019 | 1.1 × 10−5 | +0.0 σ of 2018 |
| 2018 | 1.220 890(14) × 1019 | 1.1 × 10−5 | −0.7 σ of 2014 |
| 2014 | 1.220 910(29) × 1019 | 2.4 × 10−5 | −0.3 σ of 2010 |
| 2010 | 1.220 932(73) × 1019 | 6.0 × 10−5 | +0.7 σ of 2006 |
| 2006 | 1.220 892(61) × 1019 | 5.0 × 10−5 |
“Change from previous” is the shift in the value divided by the standard uncertainty of the previous adjustment. Earlier values are converted into the current unit where NIST changed it (for example J s to J Hz⁻¹).