Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert joule (J) 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 joule 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 J | erg | 10000000 |
| microjoulefrom J | µJ | 1000000 |
| millijoulefrom J | mJ | 1000 |
| joulefrom J | J | 1 |
| kilojoulefrom J | kJ | 0.001 |
| megajoulefrom J | MJ | 0.000001 |
| gigajoulefrom J | GJ | 0.000000001 |
| watt-hourfrom J | Wh | 0.000277778 |
| kilowatt-hourfrom J | kWh | 0.000000277778 |
| megawatt-hourfrom J | MWh | 2.77778e-10 |
| thermochemical caloriefrom J | calₜₕ | 0.239006 |
| thermochemical kilocaloriefrom J | kcalₜₕ | 0.000239006 |
| International Table caloriefrom J | calIT | 0.238846 |
| International Table British thermal unitfrom J | BtuIT | 0.000947817 |
| U.S. thermfrom J | therm US | 0.00000000948043 |
| foot pound-forcefrom J | ft·lbf | 0.737562 |
| electronvoltfrom J | eV | 6.24151e18 |
| kiloelectronvoltfrom J | keV | 6.24151e15 |
| megaelectronvoltfrom J | MeV | 6241510000000 |
| gigaelectronvoltfrom J | GeV | 6241510000 |
| ton of TNTfrom J | t TNT | 2.39006e-10 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Joule (J) and International Table British thermal unit (BtuIT) are units of energy & work. Use this page to convert in either direction.
| Joule (J) | International Table British Thermal Unit (BtuIT) |
|---|---|
| 1 J | 0.000947817 BtuIT |
| 5 J | 0.00473909 BtuIT |
| 10 J | 0.00947817 BtuIT |
| 100 J | 0.0947817 BtuIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT to J (International Table British thermal unit to joule)