Convert mechanical horsepower to megawatts

1 hp=0.0007457MW

Use the converter below to change any mechanical horsepower value into megawatts instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.0007457

Conversion formula

Forward

megawatts = mechanical horsepower × 0.0007457

Reverse

mechanical horsepower = megawatts × 1,341.02

Example: 10 hp × 0.0007457 = 0.007457 MW.

About both units

From

Mechanical Horsepower

Mechanical horsepower equals 745.7 watts — James Watt's 1782 definition based on horse labor. Used in US car engines, aircraft and some industrial equipment. US muscle cars quote hp; European cars usually kW or PS.

Real-world: Base Ford Mustang: ~310 hp. Lawn mower: 5 hp. Average car: 150–200 hp.

Read full mechanical horsepower reference →

Megawatt

The megawatt equals 1,000,000 watts. Used for power-station capacity and large industrial loads. Typical wind turbine: 2–15 MW. Nuclear reactor: 1000 MW (electrical). A city of 100,000 needs roughly 100 MW peak.

Real-world: Large wind turbine: 5–15 MW. Nuclear reactor: 1000 MW. London's peak demand: ~6000 MW.

Read full megawatt reference →

Mechanical Horsepower to Megawatt conversion table

Common mechanical horsepower to megawatts values for quick reference.

Mechanical Horsepower (hp)	Megawatt (MW)
1 hp	0.0007457 MW
5 hp	0.003728 MW
10 hp	0.007457 MW
50 hp	0.03728 MW
100 hp	0.07457 MW
500 hp	0.3728 MW
1,000 hp	0.7457 MW
5,000 hp	3.7285 MW
10,000 hp	7.457 MW
50,000 hp	37.285 MW

Tips & common mistakes

Quick tips

1 hp = 745.7 W = 0.7457 kW.
US car ads quote hp; European ads quote kW or PS.
Metric horsepower (PS) differs by ~1.4% — be aware.

Avoid these

Assuming hp and PS are identical — 1.4% difference.
Using horsepower for electrical devices — watts more appropriate.
Confusing horsepower at engine flywheel vs wheel (transmission losses).

Frequently asked questions

How many megawatts in a mechanical horsepower?

One mechanical horsepower equals 0.0007457 megawatts.

How do I convert mechanical horsepower to megawatts?

Multiply the mechanical horsepower value by 0.0007457 to get the equivalent in megawatts.

What is 100 mechanical horsepower in megawatts?

100 mechanical horsepower equals 0.07457 megawatts.

Is a mechanical horsepower bigger than a megawatt?

No. 1 mechanical horsepower equals 0.0007457 megawatts, so one mechanical horsepower is smaller.

How to convert mechanical horsepower to megawatts without a calculator?

Multiply by 0 for a quick estimate; use a calculator for precise results.

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