Power and Energy
hptoGW
Convert mechanical horsepower (hp) to gigawatts (GW).
Factor1 hp = 7.456999e-7 GW
Converter
hp
Accepts numbers or expressions, e.g. 150 + 14.7
Result
GW
Rendered to 6 significant figures.
Formula
Formula
GW = hp × 7.456999e-7
Multiply any value in mechanical horsepower by 7.456999e-7 to obtain the value in gigawatts.
Worked example
Convert 1.00000e+6 hp to GW.
- 01Start with 1.00000e+6 hp.
- 02Multiply by the conversion factor: 1.00000e+6 × 7.456999e-7 = 0.7457 GW.
Result1.00000e+6 hp = 0.7457 GW
Conversion table
| hp | GW |
|---|---|
| 1 | 7.457e-7 |
| 2 | 1.4914e-6 |
| 5 | 3.7285e-6 |
| 10 | 7.457e-6 |
| 20 | 1.4914e-5 |
| 50 | 3.7285e-5 |
| 100 | 7.457e-5 |
| 200 | 0.00014914 |
| 500 | 0.00037285 |
| 1000 | 0.0007457 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from hp to GW?
1 hp equals 7.456999e-7 GW. To convert, multiply the value in mechanical horsepower by 7.456999e-7.
How do I convert 1 hp to GW?
1 hp = 7.457e-7 GW. For any value, multiply by 7.456999e-7.
How do I convert GW back to hp?
Divide by the same factor — or equivalently, multiply by 1341022. So 1 GW = 1.34102e+6 hp.
When would I need to convert mechanical horsepower to gigawatt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).