mechanical horsepower to metric horsepower
Convert mechanical horsepower (hp) to metric horsepower (PS). Use an editable power converter, conversion formula, and reference table.
1 hp = 1.013869665 PS
Conversion formula
One mechanical horsepower equals 1.013869665 metric horsepower. Multiply your value in mechanical horsepower by this factor to get metric horsepower. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 mechanical horsepower:5 × 1.013869665 = 5.069348327 PS
Conversion table
| mechanical horsepower (hp) | metric horsepower (PS) |
|---|---|
| 0.01 | 0.01013869665 |
| 0.1 | 0.1013869665 |
| 1 | 1.013869665 |
| 2 | 2.027739331 |
| 5 | 5.069348327 |
| 10 | 10.13869665 |
| 25 | 25.34674164 |
| 50 | 50.69348327 |
| 100 | 101.3869665 |
| 1000 | 1,013.869665 |
About these measurements
Power is the rate of energy transfer.
The base reference used here is the watt. One mechanical horsepower is 745.6998716 base units; one metric horsepower is 735.49875 base units.
Important distinctions
Mechanical horsepower and metric horsepower are distinct units.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert hp to PS?
Multiply the quantity in hp by 1.013869665. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the metric horsepower to mechanical horsepower converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
