Horsepower-Hour to Megawatt-Hour Converter

Energy Converter

27 units available

Decimals:

From

To

0.000746

1 hp·h = 0.000746 MWh

Formula:

MWh = hp·h × 0.0007456999

With your value: 1 hp·h = 0.0007457 MWh

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 Megawatt-Hour conversions

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

Horsepower-Hour to Megawatt-Hour Conversion Table

Horsepower-Hour (hp·h)	Megawatt-Hour (MWh)
0.5	0.000373
1	0.000746
2	0.001491
5	0.003728
10	0.007457
15	0.011185
20	0.014914
25	0.018642
50	0.037285
100	0.07457
250	0.186425
500	0.37285
1000	0.7457

Megawatt-Hour to Horsepower-Hour Conversion Table

Megawatt-Hour (MWh)	Horsepower-Hour (hp·h)
0.5	670.511045
1	1,341.02209
2	2,682.044179
5	6,705.110448
10	13,410.220896
15	20,115.331344
20	26,820.441792
25	33,525.55224
50	67,051.10448
100	134,102.208959
250	335,255.522398
500	670,511.044797
1000	1,341,022.089593

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

Megawatt-Hour (MWh)

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 Megawatt-Hour

To convert from Horsepower-Hour (hp·h) to Megawatt-Hour (MWh), multiply the value by 0.0007456999.

Formula: MWh = hp·h × 0.0007456999

Reverse: hp·h = MWh × 1,341.0220895931

Step-by-Step Example

Start with your value in Horsepower-Hour. For example: 5 hp·h
Multiply by the conversion factor: 5 x 0.0007456999
The result is: 0.003728 MWh

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 Megawatt-Hour

The megawatt-hour (MWh) is a unit of energy and work. One megawatt-hour equals 3.600000 × 10^+9 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 Megawatt-Hour are in 1 Horsepower-Hour?

There are exactly 0.0007456999 Megawatt-Hour in 1 Horsepower-Hour. This means the conversion factor from Horsepower-Hour to Megawatt-Hour is 0.0007456999.

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

The formula to convert Horsepower-Hour to Megawatt-Hour is: MWh = hp·h × 0.0007456999. For example, to convert 10 Horsepower-Hour to Megawatt-Hour, you would multiply 10 by 0.0007456999.

What is a Horsepower-Hour?