Horsepower-Hour to Kilowatt-Hour Converter

Energy Converter

27 units available

Decimals:

From

To

0.7457

1 hp·h = 0.7457 kWh

Formula:

kWh = hp·h × 0.7456998716

With your value: 1 hp·h = 0.74569987 kWh

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 Kilowatt-Hour conversions

2 hp·h to kWh 3 hp·h to kWh 4 hp·h to kWh 5 hp·h to kWh 6 hp·h to kWh 7 hp·h to kWh 8 hp·h to kWh

Horsepower-Hour to Kilowatt-Hour Conversion Table

Horsepower-Hour (hp·h)	Kilowatt-Hour (kWh)
0.5	0.37285
1	0.7457
2	1.4914
5	3.728499
10	7.456999
15	11.185498
20	14.913997
25	18.642497
50	37.284994
100	74.569987
250	186.424968
500	372.849936
1000	745.699872

Kilowatt-Hour to Horsepower-Hour Conversion Table

Kilowatt-Hour (kWh)	Horsepower-Hour (hp·h)
0.5	0.670511
1	1.341022
2	2.682044
5	6.70511
10	13.410221
15	20.115331
20	26.820442
25	33.525552
50	67.051104
100	134.102209
250	335.255522
500	670.511045
1000	1,341.02209

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

Kilowatt-Hour (kWh)

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 Kilowatt-Hour

To convert from Horsepower-Hour (hp·h) to Kilowatt-Hour (kWh), multiply the value by 0.7456998716.

Formula: kWh = hp·h × 0.7456998716

Reverse: hp·h = kWh × 1.3410220896

Step-by-Step Example

Start with your value in Horsepower-Hour. For example: 5 hp·h
Multiply by the conversion factor: 5 x 0.7456998716
The result is: 3.728499 kWh

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 Kilowatt-Hour

The kilowatt-hour is a unit of energy equal to 3.6 million joules, commonly used for electrical billing.

Common uses: electricity bills, energy consumption, appliances.

Frequently Asked Questions

How many Kilowatt-Hour are in 1 Horsepower-Hour?

There are exactly 0.7456998716 Kilowatt-Hour in 1 Horsepower-Hour. This means the conversion factor from Horsepower-Hour to Kilowatt-Hour is 0.7456998716.

What is the formula to convert Horsepower-Hour to Kilowatt-Hour?

The formula to convert Horsepower-Hour to Kilowatt-Hour is: kWh = hp·h × 0.7456998716. For example, to convert 10 Horsepower-Hour to Kilowatt-Hour, you would multiply 10 by 0.7456998716.

What is a Horsepower-Hour?