Foot-pounds to British thermal units converter
British thermal units (BTU)
1 foot-pound = 0.001285067463 British thermal units
How to convert foot-pounds to British thermal units
BTU = ft·lbf × 0.00128506746346
Multiply the number of foot-pounds by 0.00128506746346 to get British thermal units. Going the other way, divide by 0.00128506746346 (or multiply by 778.169262266).
One foot-pound is exactly defined as 0.00128506746346 British thermal units (to 12 significant figures), and one British thermal unit is 778.169262266 foot-pounds.
Worked examples
- Convert 5 foot-pounds: 5 × 0.00128506746346 = 0.006425337317 0.006425337317 British thermal units.
- Convert 12.5 foot-pounds: 12.5 × 0.00128506746346 = 0.01606334329 0.01606334329 British thermal units.
- Convert 250 foot-pounds: 250 × 0.00128506746346 = 0.3212668659 0.3212668659 British thermal units.
Quick-reference table
| ft·lbf | BTU |
|---|---|
| 1 | 0.001285067463 |
| 2 | 0.002570134927 |
| 3 | 0.00385520239 |
| 5 | 0.006425337317 |
| 10 | 0.01285067463 |
| 15 | 0.01927601195 |
| 20 | 0.02570134927 |
| 25 | 0.03212668659 |
| 50 | 0.06425337317 |
| 75 | 0.09638005976 |
| 100 | 0.1285067463 |
| 1,000 | 1.285067463 |
| BTU | ft·lbf |
|---|---|
| 1 | 778.1692623 |
| 2 | 1,556.338525 |
| 3 | 2,334.507787 |
| 5 | 3,890.846311 |
| 10 | 7,781.692623 |
| 15 | 11,672.53893 |
| 20 | 15,563.38525 |
| 25 | 19,454.23156 |
| 50 | 38,908.46311 |
| 75 | 58,362.69467 |
| 100 | 77,816.92623 |
| 1,000 | 778,169.2623 |
Related conversions
Frequently asked questions
How many British thermal units are in 1 foot-pound?
1 foot-pound equals 0.001285067463 British thermal units.
What is the formula to convert foot-pounds to British thermal units?
Use BTU = ft·lbf × 0.00128506746346. Multiply the number of foot-pounds by 0.00128506746346 to get British thermal units. Going the other way, divide by 0.00128506746346 (or multiply by 778.169262266).
What is 100 foot-pounds in British thermal units?
100 foot-pounds is 0.1285067463 British thermal units.