Horsepower-Hour to Foot-Pound Converter

Energy Converter

27 units available

Decimals:

From

To

1,980,000.000049

1 hp·h = 1,980,000.000049 ft·lbf

Formula:

ft·lbf = hp·h × 1,980,000.0000486793

With your value: 1 hp·h = 1,980,000.00004868 ft·lbf

How big is that?

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

Heartbeat (1/2.7e+6 your value)3.73e-7 hp·h

AA battery charge (1/2.7e+2 your value)0.00373 hp·h

Slice of bread (1/9.6 your value)0.104 hp·h

Your value1.00 hp·h

Daily food intake (3.1× your value)3.13 hp·h

Litre of petrol (13× your value)12.7 hp·h

Other Horsepower-Hour to Foot-Pound conversions

2 hp·h to ft·lbf 3 hp·h to ft·lbf 4 hp·h to ft·lbf 5 hp·h to ft·lbf 6 hp·h to ft·lbf 7 hp·h to ft·lbf 8 hp·h to ft·lbf

Horsepower-Hour to Foot-Pound Conversion Table

Horsepower-Hour (hp·h)	Foot-Pound (ft·lbf)
0.5	990,000.000024
1	1,980,000.000049
2	3,960,000.000097
5	9,900,000.000243
10	19,800,000.000487
15	29,700,000.00073
20	39,600,000.000974
25	49,500,000.001217
50	99,000,000.002434
100	198,000,000.004868
250	495,000,000.01217
500	990,000,000.02434
1000	1,980,000,000.048679

Foot-Pound to Horsepower-Hour Conversion Table

Foot-Pound (ft·lbf)	Horsepower-Hour (hp·h)
0.5	2.525253e-7
1	5.050505e-7
2	1.010101e-6
5	2.525253e-6
10	5.050505e-6
15	7.575758e-6
20	1.010101e-5
25	1.262626e-5
50	2.525253e-5
100	5.050505e-5
250	0.000126
500	0.000253
1000	0.000505

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.

Horsepower-Hour (hp·h)

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 Horsepower-Hour to Foot-Pound

To convert from Horsepower-Hour (hp·h) to Foot-Pound (ft·lbf), multiply the value by 1,980,000.0000486793.

Formula: ft·lbf = hp·h × 1,980,000.0000486793

Reverse: hp·h = ft·lbf × 5.050505e-7

Step-by-Step Example

Start with your value in Horsepower-Hour. For example: 5 hp·h
Multiply by the conversion factor: 5 x 1,980,000.0000486793
The result is: 9,900,000.000243 ft·lbf

About Horsepower-Hour

The horsepower-hour (hp·h) is a unit of energy and work. One horsepower-hour equals 2.684520 × 10^+6 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 Horsepower-Hour?

There are exactly 1,980,000.0000486793 Foot-Pound in 1 Horsepower-Hour. This means the conversion factor from Horsepower-Hour to Foot-Pound is 1,980,000.0000486793.

What is the formula to convert Horsepower-Hour to Foot-Pound?

The formula to convert Horsepower-Hour to Foot-Pound is: ft·lbf = hp·h × 1,980,000.0000486793. For example, to convert 10 Horsepower-Hour to Foot-Pound, you would multiply 10 by 1,980,000.0000486793.

What is a Horsepower-Hour?