Marks Calc

foot-pounds to BTU

Convert foot-pound to btu — instant, free, with the formula shown.

1 ft·lb=0.001285 BTU

How to convert foot-pound to btu

To convert foot-pound to btu, multiply by 0.00128507:

BTU = ft·lb × 0.00128507

For example, 10 ft·lb × 0.001285 = 0.012851 BTU.

ft·lb to BTU conversion table

foot-pounds (ft·lb)BTU (BTU)
1 ft·lb0.001285 BTU
2 ft·lb0.00257 BTU
5 ft·lb0.006425 BTU
10 ft·lb0.012851 BTU
25 ft·lb0.032127 BTU
50 ft·lb0.064253 BTU
100 ft·lb0.128507 BTU
250 ft·lb0.321267 BTU
500 ft·lb0.642534 BTU
1000 ft·lb1.285067 BTU
Reverse: BTU to Foot-pound

Other foot-pound conversions

Convert to btu from another unit

ft·lb to BTU — frequently asked

How many BTU are in 1 foot-pound?

1 foot-pound = 0.001285 BTU (ft·lb × 0.001285 = BTU).

What is the formula to convert foot-pound to btu?

Multiply your foot-pound value by 0.00128507 to get btu.

How do I convert 10 foot-pounds to BTU?

10 ft·lb = 0.012851 BTU. For 100 ft·lb the answer is 0.128507 BTU. Use the calculator on this page for any other value.

When to convert foot-pound to btu

1Electricity bills (kWh)
2Nutrition labels (kcal / food cal)
3HVAC and heating (BTU, therms)
4Physics and chemistry (J, eV)

Energy conversion — common questions

Is a food calorie the same as a calorie?

No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.

How many joules in 1 kWh?

1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.

What is a BTU?

British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.

See all energy converters