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Energy
Foot-pounds to BTU
Convert foot-pounds (ft·lb) to BTU (BTU). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 ft·lb = 0.001285 BTU
Foot-pounds to BTU Conversion Table
Common values, ready to copy:
| foot-pounds | BTU |
|---|---|
| 1 ft·lb | 0.001285 BTU |
| 2 ft·lb | 0.00257 BTU |
| 5 ft·lb | 0.006425 BTU |
| 10 ft·lb | 0.012851 BTU |
| 25 ft·lb | 0.032127 BTU |
| 50 ft·lb | 0.064253 BTU |
| 100 ft·lb | 0.128506 BTU |
| 1,000 ft·lb | 1.2851 BTU |
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Formula
BTU = foot-pounds × 1.28506436e-3
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
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