Convert Horsepower to Megawatts
Convert Horsepower to Megawatts instantly. 1 Horsepower (hp) equals 0.0007457 Megawatts (MW).
Horsepower to Megawatts conversion table
| Horsepower (hp) | Megawatts (MW) |
|---|---|
| 1 hp | 0.0007457 MW |
| 2 hp | 0.001491 MW |
| 3 hp | 0.002237 MW |
| 5 hp | 0.003728 MW |
| 10 hp | 0.007457 MW |
| 20 hp | 0.01491 MW |
| 50 hp | 0.03728 MW |
| 100 hp | 0.07457 MW |
| 500 hp | 0.3728 MW |
| 1,000 hp | 0.7457 MW |
1 Horsepower = 0.0007457 Megawatts · multiply Horsepower by 0.0007457
About converting Horsepower to Megawatts
Horsepower (hp) and Megawatts (MW) are both units of power, so converting between them is a single multiplication: multiply your Horsepower figure by 0.0007457. Ten Horsepower comes to 0.007457 Megawatts, and a hundred works out at 0.07457 Megawatts.
Rule of thumb: going from Horsepower to Megawatts divides, so the figure always shrinks — it takes about 1,341.02 Horsepower to make a single Megawatt. If your answer came out bigger, you have the conversion the wrong way round.
What is a Horsepower?
Horsepower is a marketing unit that became a standard. James Watt devised it to sell steam engines to mine owners who had never bought an engine but had bought plenty of horses: by measuring what a draught horse could actually lift over a working day, he could quote an engine as worth so many horses and let the buyer do the arithmetic. Mechanical or imperial horsepower is defined as exactly 550 foot-pounds-force per second, which is why it lands on no tidy figure in watts. Two and a half centuries after the horses left, it is still how cars, outboards and lawn tractors are advertised.
What is a Megawatt?
A megawatt is a million watts, and it is the unit the electricity system is discussed in. Power stations, wind farms, solar arrays, interconnectors and national demand are all quoted in megawatts, and data centres have joined them — a modern campus is described by the megawatts it draws. The number is a capacity, a maximum rate, not a quantity delivered, which is why a wind farm "rated" at 100 MW does not produce anything close to that around the clock; what it actually generated over a year is a figure in megawatt-hours. Confusing the two is the most common error in energy reporting.
To put both in perspective: a family hatchback makes something like 120 horsepower, while a large wind turbine is rated at a few megawatts.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Megawatts to Horsepower converter, or browse all Power converters.
Frequently asked questions
How many Megawatts are in one Horsepower?
There are 0.0007457 Megawatts in one Horsepower.
How do I convert Horsepower to Megawatts?
Multiply the number of Horsepower by 0.0007457. For example, 10 Horsepower = 0.007457 Megawatts.
What is 100 Horsepower in Megawatts?
100 Horsepower is equal to 0.07457 Megawatts.
How do I convert Megawatts to Horsepower?
Multiply the Megawatts value by 1,341.02 (or divide by 0.0007457).
Is this Horsepower to Megawatts conversion exact?
The definition is exact — Horsepower and Megawatts are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Horsepower?
Horsepower is a marketing unit that became a standard. James Watt devised it to sell steam engines to mine owners who had never bought an engine but had bought plenty of horses: by measuring what a draught horse could actually lift over a working day, he could quote an engine as worth so many horses and let the buyer do the arithmetic. Mechanical or imperial horsepower is defined as exactly 550 foot-pounds-force per second, which is why it lands on no tidy figure in watts. Two and a half centuries after the horses left, it is still how cars, outboards and lawn tractors are advertised.
What is a Megawatt?
A megawatt is a million watts, and it is the unit the electricity system is discussed in. Power stations, wind farms, solar arrays, interconnectors and national demand are all quoted in megawatts, and data centres have joined them — a modern campus is described by the megawatts it draws. The number is a capacity, a maximum rate, not a quantity delivered, which is why a wind farm "rated" at 100 MW does not produce anything close to that around the clock; what it actually generated over a year is a figure in megawatt-hours. Confusing the two is the most common error in energy reporting.