Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert thermochemical calorie (calₜₕ) 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 thermochemical calorie 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 calₜₕ | erg | 41840000 |
| microjoulefrom calₜₕ | µJ | 4184000 |
| millijoulefrom calₜₕ | mJ | 4184 |
| joulefrom calₜₕ | J | 4.184 |
| kilojoulefrom calₜₕ | kJ | 0.004184 |
| megajoulefrom calₜₕ | MJ | 0.000004184 |
| gigajoulefrom calₜₕ | GJ | 0.000000004184 |
| watt-hourfrom calₜₕ | Wh | 0.00116222 |
| kilowatt-hourfrom calₜₕ | kWh | 0.00000116222 |
| megawatt-hourfrom calₜₕ | MWh | 0.00000000116222 |
| thermochemical caloriefrom calₜₕ | calₜₕ | 1 |
| thermochemical kilocaloriefrom calₜₕ | kcalₜₕ | 0.001 |
| International Table caloriefrom calₜₕ | calIT | 0.999331 |
| International Table British thermal unitfrom calₜₕ | BtuIT | 0.00396567 |
| U.S. thermfrom calₜₕ | therm US | 0.0000000396661 |
| foot pound-forcefrom calₜₕ | ft·lbf | 3.08596 |
| electronvoltfrom calₜₕ | eV | 2.61145e19 |
| kiloelectronvoltfrom calₜₕ | keV | 2.61145e16 |
| megaelectronvoltfrom calₜₕ | MeV | 26114500000000 |
| gigaelectronvoltfrom calₜₕ | GeV | 26114500000 |
| ton of TNTfrom calₜₕ | t TNT | 0.000000001 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Thermochemical Calorie (calₜₕ) and International Table British thermal unit (BtuIT) are units of energy & work. Use this page to convert in either direction.
| Thermochemical Calorie (calₜₕ) | International Table British Thermal Unit (BtuIT) |
|---|---|
| 1 calₜₕ | 0.00396567 BtuIT |
| 5 calₜₕ | 0.0198283 BtuIT |
| 10 calₜₕ | 0.0396567 BtuIT |
| 100 calₜₕ | 0.396567 BtuIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT to calₜₕ (International Table British thermal unit to thermochemical calorie)