Horsepower to Megawatts Converter
Enter the power in horsepower below to convert it to megawatts.
Convert Horsepower (hp) to Megawatts
Enter a value in horsepower (hp) (hp) to convert to megawatts (MW).
Horsepower to Megawatt Conversion Table
Table showing various horsepower measurements converted to megawatts. Click any preset value or arrow to load it into the converter.
| Horsepower (hp) (hp) | Megawatts (MW) |
|---|---|
| 1 hp | 0.0007457 MW |
| 2 hp | 0.0014914 MW |
| 2.5 hp | 0.0018642 MW |
| 5 hp | 0.0037285 MW |
| 10 hp | 0.007457 MW |
| 15 hp | 0.0111855 MW |
| 20 hp | 0.014914 MW |
| 25 hp | 0.0186425 MW |
| 30 hp | 0.022371 MW |
| 50 hp | 0.037285 MW |
How to Convert Horsepower to Megawatts
To convert horsepower to megawatts, multiply the power by the following conversion ratio: 0.0007457 megawatts/horsepower.
Since one horsepower is equal to 0.0007457 megawatts, you can use this simple formula to convert:
The power in megawatts is equal to the power in horsepower multiplied by 0.0007457.
For example, here's how to convert 5 horsepower to megawatts using the formula above.
How Many Megawatts Are in a Horsepower?
There are 0.0007457 megawatts in a horsepower, which is why we use this value in the formula above.
Our horsepower to megawatt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Horsepower and megawatts are both units used to measure power. Keep reading to learn more about each unit.
What Is a Horsepower?
A horsepower is a unit of power equal to 745.6998716 watts (W), the base unit for power. Imperial mechanical horsepower (550 ft·lbf/s ≈ 745.7 W). [1]
The horsepower is classified as a US customary and imperial unit of power. Horsepower can be abbreviated as hp; for example, 1 horsepower can be written as 1 hp.
When working with horsepower (hp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, horsepower (hp) are widely used across standard power applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Megawatt?
A megawatt is a unit of power equal to 1,000,000 watts (W), the base unit for power. Equal to 1,000,000 Watts (1,000 kW). [2]
The megawatt is classified as a metric and SI-compatible unit of power. Megawatts can be abbreviated as MW; for example, 1 megawatt can be written as 1 MW.
In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megawatt (MW) a convenient decimal multiple of the watt (W).
In practice, megawatts (MW) are widely used across large-scale industrial, bulk, and macro-level power specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting power between horsepower (hp) and megawatts (MW), keep full floating-point precision (1 hp = 0.0007457 MW; 1 MW = 1,341.0220896 hp) during intermediate calculations and round only the final megawatt figure to match your instrument tolerance.
More Horsepower & Megawatt Conversions
Need to calculate in the opposite direction? Use our megawatts to horsepower (hp) calculator to switch your starting unit immediately. You can also explore related tools such as converting megawatts to horsepower (hp), converting horsepower (hp) to watts, or converting horsepower (hp) to kilowatts.
Convert from Horsepower
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Horsepower (hp) (hp) to Megawatts (MW)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Horsepower (Mechanical) (hp) & Megawatt (MW)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (hp to MW)