Convert Horsepower to Megawatts
1 horsepower (hp) equals 0.0007456998716 megawatts (MW).
1 hp = 0.0007456998716 MW
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk horsepower to megawatt converter to paste a column from Excel.
How to Convert Horsepower to Megawatt
- 1 hp = 0.0007456998716 MW
- 1 MW = 1341.02209 hp
- Example: convert 15 hp to MW: 15 hp = 15 × 0.0007456998716 MW = 0.01118549807 MW
Reference conditions. hp: Mechanical (imperial) horsepower, 550 ft·lbf/s. Metric horsepower (PS) is about 1.4 % smaller.
Formula
MW = hp × 0.0007456998715823
or MW = hp ÷ 1341.022089595
Derivation from SI units:
- 1 hp = 550 ft·lbf/s = 745.69987158227 W
- 1 MW = 10⁶ W
- 1 hp = 745.6998715823 W ÷ 1000000 W per MW = 0.0007456998715823 MW
Both units are defined exactly, so the factor is exact. Horsepower definition: horsepower; Megawatt definition: megawatt.
Worked examples
- A reading of 5 hp converts to 0.003728499358 MW.
5 hp × 0.0007456998716 = 0.003728499358 MW - A value of 150 hp is 0.1118549807 MW.
150 hp × 0.0007456998716 = 0.1118549807 MW
Horsepower to Megawatt conversion table
| Horsepower (hp) | Megawatts (MW) |
|---|---|
| 0.25 hp | 0.0001864249679 MW |
| 0.5 hp | 0.0003728499358 MW |
| 1 hp | 0.0007456998716 MW |
| 1.5 hp | 0.001118549807 MW |
| 2 hp | 0.001491399743 MW |
| 5 hp | 0.003728499358 MW |
| 10 hp | 0.007456998716 MW |
| 25 hp | 0.01864249679 MW |
| 50 hp | 0.03728499358 MW |
| 100 hp | 0.07456998716 MW |
| 150 hp | 0.1118549807 MW |
| 200 hp | 0.1491399743 MW |
| 300 hp | 0.2237099615 MW |
| 400 hp | 0.2982799486 MW |
| 500 hp | 0.3728499358 MW |
| 1000 hp | 0.7456998716 MW |
Where it's used
Horsepower are used for car and motorcycle engine power in the US and UK, while megawatts appear in wind turbines (2–15 MW). Both measure power (energy per unit time), so the conversion is a fixed factor.
Horsepower to other power units
| Conversion | 1 hp equals |
|---|---|
| horsepower to watt | 745.6998716 W |
| horsepower to milliwatt | 745699.8716 mW |
| horsepower to kilowatt | 0.7456998716 kW |
| horsepower to megawatt | 0.0007456998716 MW |
| horsepower to metric horsepower | 1.013869665 PS |
| horsepower to BTU per hour | 2544.433578 BTU/h |
| horsepower to refrigeration ton | 0.2120361315 TR |
| horsepower to kilocalorie per hour | 641.186476 kcal/h |
| horsepower to foot-pound per second | 550 ft·lbf/s |
Frequently asked questions
How many megawatts are in 1 horsepower?
1 hp = 0.0007456998716 MW.
How do I convert horsepower to megawatts?
Multiply the value in hp by 0.0007456998716, or divide it by 1341.02209. For example, 15 hp × 0.0007456998716 = 0.01118549807 MW.
Is the hp to MW conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "horsepower (550 ft·lbf/s)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Horsepower to Megawatts. Retrieved October 17, 2026, from https://scientificconverters.com/power/horsepower-to-megawatts/
IEEE
Scientific Converters, "Convert Horsepower to Megawatts," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/horsepower-to-megawatts/