Convert BTU to foot-pounds
1 BTU = 778.17 ft·lb. Change the amount below, or read the formula and the reference table further down.
1 BTU equals
foot-pounds
1 BTU = 778.17 ft·lb
The formula
BTU and foot-pounds both measure energy from the same zero, so a single multiplier does the job.
ft·lb = BTU × 778.17
Going the other way? Convert foot-pounds to BTU.
BTU to foot-pounds table
Common values, rounded for reading.
| BTU (BTU) | Foot-pounds (ft·lb) |
|---|---|
| 1 | 778.17 |
| 2 | 1,556.34 |
| 3 | 2,334.51 |
| 4 | 3,112.68 |
| 5 | 3,890.85 |
| 6 | 4,669.02 |
| 7 | 5,447.18 |
| 8 | 6,225.35 |
| 9 | 7,003.52 |
| 10 | 7,781.69 |
| 15 | 11,672.54 |
| 20 | 15,563.39 |
| 25 | 19,454.23 |
| 30 | 23,345.08 |
| 40 | 31,126.77 |
| 50 | 38,908.46 |
| 75 | 58,362.69 |
| 100 | 77,816.93 |
| 250 | 194,542.32 |
| 500 | 389,084.63 |
| 1,000 | 778,169.26 |
Questions people ask
- How many foot-pounds are in a BTU?
- One BTU equals 778.17 foot-pounds.
- How do I convert BTU to foot-pounds by hand?
- Multiply the number of BTU by 778.17. For a rough check, 778.17 is close enough for most everyday use.
- What is 1 BTU in foot-pounds?
- 1 BTU is 778.17 foot-pounds.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.