Energy conversion
1 foot-pound (ft·lb) equals 0.32404826681 thermochemical calorie (cal). Enter any value below to convert from ft·lb to cal.
Enter a value and choose units. Results update instantly.
1 ft·lb = 0.3240482668 cal
| Unit | Value |
|---|---|
| Joule J | 1.3558179483 |
| Kilojoule kJ | 0.0013558179 |
| Thermochemical calorie cal | 0.3240482668 |
| Kilocalorie kcal | 0.0003240483 |
| Watt-hour Wh | 0.0003766161 |
| Kilowatt-hour kWh | 0.0000003766 |
| BTU (International Table) BTUₕᵀ | 0.0012850675 |
| Foot-pound ft·lb | 1 |
| Electronvolt eV | 8.4623500278e18 |
Formula
Use this relationship for a direct conversion:
2 ft·lb = 0.6480965336 cal.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Foot-pound (ft·lb) | Thermochemical calorie (cal) |
|---|---|
| 0.01 | 0.0032404827 |
| 0.1 | 0.0324048267 |
| 1 | 0.3240482668 |
| 2 | 0.6480965336 |
| 5 | 1.620241334 |
| 10 | 3.2404826681 |
| 25 | 8.1012066702 |
| 50 | 16.2024133405 |
| 100 | 32.404826681 |
| 1,000 | 324.0482668096 |
From unit
Work from one pound-force through one foot.
Symbol: ft·lb
To unit
Exactly 4.184 joules.
Symbol: cal
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula cal = ft·lb x 0.32404826681. 1 foot-pound (ft·lb) equals 0.32404826681 thermochemical calorie (cal).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
