Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
EVERYDAY · ENGINEERING · SCIENCE
Convert watt-hour (Wh) to International Table British thermal unit (BtuIT). Enter a value for an instant result, or use the examples and reverse conversion below.
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a watt-hour value to calculate International Table British thermal unit with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| ergfrom Wh | erg | 36000000000 |
| microjoulefrom Wh | µJ | 3600000000 |
| millijoulefrom Wh | mJ | 3600000 |
| joulefrom Wh | J | 3600 |
| kilojoulefrom Wh | kJ | 3.6 |
| megajoulefrom Wh | MJ | 0.0036 |
| gigajoulefrom Wh | GJ | 0.0000036 |
| watt-hourfrom Wh | Wh | 1 |
| kilowatt-hourfrom Wh | kWh | 0.001 |
| megawatt-hourfrom Wh | MWh | 0.000001 |
| thermochemical caloriefrom Wh | calₜₕ | 860.421 |
| thermochemical kilocaloriefrom Wh | kcalₜₕ | 0.860421 |
| International Table caloriefrom Wh | calIT | 859.845 |
| International Table British thermal unitfrom Wh | BtuIT | 3.41214 |
| U.S. thermfrom Wh | therm US | 0.0000341296 |
| foot pound-forcefrom Wh | ft·lbf | 2655.22 |
| electronvoltfrom Wh | eV | 2.24694e22 |
| kiloelectronvoltfrom Wh | keV | 2.24694e19 |
| megaelectronvoltfrom Wh | MeV | 2.24694e16 |
| gigaelectronvoltfrom Wh | GeV | 22469400000000 |
| ton of TNTfrom Wh | t TNT | 0.000000860421 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Watt-hour (Wh) and International Table British thermal unit (BtuIT) are units of energy & work. Use this page to convert in either direction.
| Watt-hour (Wh) | International Table British Thermal Unit (BtuIT) |
|---|---|
| 1 Wh | 3.41214 BtuIT |
| 5 Wh | 17.0607 BtuIT |
| 10 Wh | 34.1214 BtuIT |
| 100 Wh | 341.214 BtuIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT to Wh (International Table British thermal unit to watt-hour)