Energy conversion
1 foot-pound (ft·lb) equals 0.001285067463 btu (international table) (BTUₕᵀ). Enter any value below to convert from ft·lb to BTUₕᵀ.
Enter a value and choose units. Results update instantly.
1 ft·lb = 0.0012850675 BTUₕᵀ
| 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 = 0.0025701349 BTUₕᵀ.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Foot-pound (ft·lb) | BTU (International Table) (BTUₕᵀ) |
|---|---|
| 0.01 | 0.0000128507 |
| 0.1 | 0.0001285067 |
| 1 | 0.0012850675 |
| 2 | 0.0025701349 |
| 5 | 0.0064253373 |
| 10 | 0.0128506746 |
| 25 | 0.0321266866 |
| 50 | 0.0642533732 |
| 100 | 0.1285067463 |
| 1,000 | 1.2850674635 |
From unit
Work from one pound-force through one foot.
Symbol: ft·lb
To unit
The International Table British thermal unit.
Symbol: BTUₕᵀ
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 BTUₕᵀ = ft·lb x 0.001285067463. 1 foot-pound (ft·lb) equals 0.001285067463 btu (international table) (BTUₕᵀ).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
