Therm to Foot-Pound Converter

Energy Converter

27 units available

Decimals:

From

To

77,816,926.228399

1 thm = 77,816,926.228399 ft·lbf

Formula:

ft·lbf = thm × 77,816,926.22839871

With your value: 1 thm = 77,816,926.22839871 ft·lbf

How big is that?

Everyday references on a logarithmic scale, all expressed in therm so you can sanity-check the result.

Heartbeat (1/1.1e+8 your value)9.48e-9 thm

AA battery charge (1/1.1e+4 your value)0.0000948 thm

Slice of bread (1/3.8e+2 your value)0.00265 thm

Daily food intake (1/13 your value)0.0796 thm

Litre of petrol (1/3.1 your value)0.324 thm

Your value1.00 thm

Other Therm to Foot-Pound conversions

2 thm to ft·lbf 3 thm to ft·lbf 4 thm to ft·lbf 5 thm to ft·lbf 6 thm to ft·lbf 7 thm to ft·lbf 8 thm to ft·lbf

Therm to Foot-Pound Conversion Table

Therm (thm)	Foot-Pound (ft·lbf)
0.5	38,908,463.114199
1	77,816,926.228399
2	155,633,852.456797
5	389,084,631.141994
10	778,169,262.283987
15	1,167,253,893.425981
20	1,556,338,524.567974
25	1,945,423,155.709968
50	3,890,846,311.419936
100	7,781,692,622.839871
250	19,454,231,557.09968
500	38,908,463,114.19936
1000	77,816,926,228.39873

Foot-Pound to Therm Conversion Table

Foot-Pound (ft·lbf)	Therm (thm)
0.5	6.425337e-9
1	1.285067e-8
2	2.570135e-8
5	6.425337e-8
10	1.285067e-7
15	1.927601e-7
20	2.570135e-7
25	3.212669e-7
50	6.425337e-7
100	1.285067e-6
250	3.212669e-6
500	6.425337e-6
1000	1.285067e-5

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Therm (thm)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Foot-Pound (ft·lbf)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Therm to Foot-Pound

To convert from Therm (thm) to Foot-Pound (ft·lbf), multiply the value by 77,816,926.22839871.

Formula: ft·lbf = thm × 77,816,926.22839871

Reverse: thm = ft·lbf × 1.285067e-8

Step-by-Step Example

Start with your value in Therm. For example: 5 thm
Multiply by the conversion factor: 5 x 77,816,926.22839871
The result is: 389,084,631.141994 ft·lbf

About Therm

The therm (thm) is a unit of energy and work. One therm equals 1.055056 × 10^+8 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Foot-Pound

The foot-pound (ft·lbf) is a unit of energy and work. One foot-pound equals 1.355817948 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Foot-Pound are in 1 Therm?

There are exactly 77,816,926.22839871 Foot-Pound in 1 Therm. This means the conversion factor from Therm to Foot-Pound is 77,816,926.22839871.

What is the formula to convert Therm to Foot-Pound?

The formula to convert Therm to Foot-Pound is: ft·lbf = thm × 77,816,926.22839871. For example, to convert 10 Therm to Foot-Pound, you would multiply 10 by 77,816,926.22839871.

What is a Therm?