Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert International Table British thermal unit (BtuIT) to International Table calorie (calIT). 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 International Table British thermal unit value to calculate International Table calorie 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 BtuIT | erg | 10550600000 |
| microjoulefrom BtuIT | µJ | 1055060000 |
| millijoulefrom BtuIT | mJ | 1055060 |
| joulefrom BtuIT | J | 1055.06 |
| kilojoulefrom BtuIT | kJ | 1.05506 |
| megajoulefrom BtuIT | MJ | 0.00105506 |
| gigajoulefrom BtuIT | GJ | 0.00000105506 |
| watt-hourfrom BtuIT | Wh | 0.293071 |
| kilowatt-hourfrom BtuIT | kWh | 0.000293071 |
| megawatt-hourfrom BtuIT | MWh | 0.000000293071 |
| thermochemical caloriefrom BtuIT | calₜₕ | 252.164 |
| thermochemical kilocaloriefrom BtuIT | kcalₜₕ | 0.252164 |
| International Table caloriefrom BtuIT | calIT | 251.996 |
| International Table British thermal unitfrom BtuIT | BtuIT | 1 |
| U.S. thermfrom BtuIT | therm US | 0.0000100024 |
| foot pound-forcefrom BtuIT | ft·lbf | 778.169 |
| electronvoltfrom BtuIT | eV | 6.58514e21 |
| kiloelectronvoltfrom BtuIT | keV | 6.58514e18 |
| megaelectronvoltfrom BtuIT | MeV | 6.58514e15 |
| gigaelectronvoltfrom BtuIT | GeV | 6585140000000 |
| ton of TNTfrom BtuIT | t TNT | 0.000000252164 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
International Table British Thermal Unit (BtuIT) and International Table calorie (calIT) are units of energy & work. Use this page to convert in either direction.
| International Table British Thermal Unit (BtuIT) | International Table Calorie (calIT) |
|---|---|
| 1 BtuIT | 251.996 calIT |
| 5 BtuIT | 1259.98 calIT |
| 10 BtuIT | 2519.96 calIT |
| 100 BtuIT | 25199.6 calIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
calIT to BtuIT (International Table calorie to International Table British thermal unit)