Energy & work
Mechanical, electrical, thermal and particle energy.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert foot pound-force (ft·lbf) 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 foot pound-force 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 ft·lbf | erg | 13558200 |
| microjoulefrom ft·lbf | µJ | 1355820 |
| millijoulefrom ft·lbf | mJ | 1355.82 |
| joulefrom ft·lbf | J | 1.35582 |
| kilojoulefrom ft·lbf | kJ | 0.00135582 |
| megajoulefrom ft·lbf | MJ | 0.00000135582 |
| gigajoulefrom ft·lbf | GJ | 0.00000000135582 |
| watt-hourfrom ft·lbf | Wh | 0.000376616 |
| kilowatt-hourfrom ft·lbf | kWh | 0.000000376616 |
| megawatt-hourfrom ft·lbf | MWh | 3.76616e-10 |
| thermochemical caloriefrom ft·lbf | calₜₕ | 0.324048 |
| thermochemical kilocaloriefrom ft·lbf | kcalₜₕ | 0.000324048 |
| International Table caloriefrom ft·lbf | calIT | 0.323832 |
| International Table British thermal unitfrom ft·lbf | BtuIT | 0.00128507 |
| U.S. thermfrom ft·lbf | therm US | 0.0000000128537 |
| foot pound-forcefrom ft·lbf | ft·lbf | 1 |
| electronvoltfrom ft·lbf | eV | 8.46235e18 |
| kiloelectronvoltfrom ft·lbf | keV | 8.46235e15 |
| megaelectronvoltfrom ft·lbf | MeV | 8462350000000 |
| gigaelectronvoltfrom ft·lbf | GeV | 8462350000 |
| ton of TNTfrom ft·lbf | t TNT | 3.24048e-10 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Foot Pound-force (ft·lbf) and International Table British thermal unit (BtuIT) are units of energy & work. Use this page to convert in either direction.
| Foot Pound-force (ft·lbf) | International Table British Thermal Unit (BtuIT) |
|---|---|
| 1 ft·lbf | 0.00128507 BtuIT |
| 5 ft·lbf | 0.00642534 BtuIT |
| 10 ft·lbf | 0.0128507 BtuIT |
| 100 ft·lbf | 0.128507 BtuIT |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
BtuIT to ft·lbf (International Table British thermal unit to foot pound-force)