Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert millijoule (mJ) 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 millijoule 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 mJ | erg | 10000 |
| microjoulefrom mJ | µJ | 1000 |
| millijoulefrom mJ | mJ | 1 |
| joulefrom mJ | J | 0.001 |
| kilojoulefrom mJ | kJ | 0.000001 |
| megajoulefrom mJ | MJ | 0.000000001 |
| gigajoulefrom mJ | GJ | 1e-12 |
| watt-hourfrom mJ | Wh | 0.000000277778 |
| kilowatt-hourfrom mJ | kWh | 2.77778e-10 |
| megawatt-hourfrom mJ | MWh | 2.77778e-13 |
| thermochemical caloriefrom mJ | calₜₕ | 0.000239006 |
| thermochemical kilocaloriefrom mJ | kcalₜₕ | 0.000000239006 |
| International Table caloriefrom mJ | calIT | 0.000238846 |
| International Table British thermal unitfrom mJ | BtuIT | 0.000000947817 |
| U.S. thermfrom mJ | therm US | 9.48043e-12 |
| foot pound-forcefrom mJ | ft·lbf | 0.000737562 |
| electronvoltfrom mJ | eV | 6.24151e15 |
| kiloelectronvoltfrom mJ | keV | 6241510000000 |
| megaelectronvoltfrom mJ | MeV | 6241510000 |
| gigaelectronvoltfrom mJ | GeV | 6241510 |
| ton of TNTfrom mJ | t TNT | 2.39006e-13 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Millijoule (mJ) and International Table British thermal unit (BtuIT) are units of energy & work. Use this page to convert in either direction.
| Millijoule (mJ) | International Table British Thermal Unit (BtuIT) |
|---|---|
| 1 mJ | 0.000000947817 BtuIT |
| 5 mJ | 0.00000473909 BtuIT |
| 10 mJ | 0.00000947817 BtuIT |
| 100 mJ | 0.0000947817 BtuIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT to mJ (International Table British thermal unit to millijoule)