Formula
PS to hp(I) conversion formula
Use this relationship for a direct conversion:
Worked example
2 PS = 1.9726401412 hp(I).
Horsepower type is always identified because mechanical and metric horsepower differ by about 1.4 percent.
Power conversion
1 metric horsepower (PS) equals 0.98632007062 mechanical horsepower (hp(I)). Enter any value below to convert from PS to hp(I).
Enter a value and choose units. Results update instantly.
1 PS = 0.9863200706 hp(I)
| Unit | Value |
|---|---|
| Watt W | 735.49875 |
| Kilowatt kW | 0.73549875 |
| Megawatt MW | 0.0007354987 |
| Milliwatt mW | 735,498.75 |
| Mechanical horsepower hp(I) | 0.9863200706 |
| Metric horsepower PS | 1 |
| BTU (IT) per hour BTU/h | 2,509.6259059886 |
| Foot-pound per second ft·lb/s | 542.4760388407 |
Formula
Use this relationship for a direct conversion:
2 PS = 1.9726401412 hp(I).
Horsepower type is always identified because mechanical and metric horsepower differ by about 1.4 percent.
Quick reference
| Metric horsepower (PS) | Mechanical horsepower (hp(I)) |
|---|---|
| 0.01 | 0.0098632007 |
| 0.1 | 0.0986320071 |
| 1 | 0.9863200706 |
| 2 | 1.9726401412 |
| 5 | 4.9316003531 |
| 10 | 9.8632007062 |
| 25 | 24.6580017655 |
| 50 | 49.316003531 |
| 100 | 98.632007062 |
| 1,000 | 986.3200706195 |
From unit
Exactly 75 kilogram-force meters per second.
Symbol: PS
To unit
Exactly 550 foot-pounds force per second.
Symbol: hp(I)
Keep converting
Source
Definitions are checked against NIST SP 811: Power units. Calculations use full internal precision before display rounding.
View the complete power converterQuestions
Use the formula hp(I) = PS x 0.98632007062. 1 metric horsepower (PS) equals 0.98632007062 mechanical horsepower (hp(I)).
Horsepower type is always identified because mechanical and metric horsepower differ by about 1.4 percent.