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British thermal units to foot-pounds converter

Foot-pounds (ft·lbf)778.1692623

1 British thermal unit = 778.1692623 foot-pounds

How to convert British thermal units to foot-pounds

ft·lbf = BTU × 778.169262266

Multiply the number of British thermal units by 778.169262266 to get foot-pounds. Going the other way, divide by 778.169262266 (or multiply by 0.00128506746346).

One British thermal unit is exactly defined as 778.169262266 foot-pounds (to 12 significant figures), and one foot-pound is 0.00128506746346 British thermal units.

Worked examples

  1. Convert 5 British thermal units: 5 × 778.169262266 = 3,890.846311 3,890.846311 foot-pounds.
  2. Convert 12.5 British thermal units: 12.5 × 778.169262266 = 9,727.115778 9,727.115778 foot-pounds.
  3. Convert 250 British thermal units: 250 × 778.169262266 = 194,542.3156 194,542.3156 foot-pounds.

Quick-reference table

BTUft·lbf
1778.1692623
21,556.338525
32,334.507787
53,890.846311
107,781.692623
1511,672.53893
2015,563.38525
2519,454.23156
5038,908.46311
7558,362.69467
10077,816.92623
1,000778,169.2623
ft·lbfBTU
10.001285067463
20.002570134927
30.00385520239
50.006425337317
100.01285067463
150.01927601195
200.02570134927
250.03212668659
500.06425337317
750.09638005976
1000.1285067463
1,0001.285067463

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Frequently asked questions

How many foot-pounds are in 1 British thermal unit?

1 British thermal unit equals 778.1692623 foot-pounds.

What is the formula to convert British thermal units to foot-pounds?

Use ft·lbf = BTU × 778.169262266. Multiply the number of British thermal units by 778.169262266 to get foot-pounds. Going the other way, divide by 778.169262266 (or multiply by 0.00128506746346).

What is 100 British thermal units in foot-pounds?

100 British thermal units is 77,816.92623 foot-pounds.