1 metric horsepower = 0.98632 mechanical horsepower
Convert metric horsepower to mechanical horsepower.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
hp = PS × 0.98632
Worked through with a real value: 10 metric horsepower = 9.8632 mechanical horsepower.
Going the other way: PS = hp × 1.01387, so 1 mechanical horsepower = 1.01387 metric horsepower.
What each unit is
- metric horsepower PS
- Exactly 75 kilogram-force metres per second, or 735.49875 watts exactly. Also called PS (Pferdestärke in German) or CV (Cavalli Vapore in Italian). The unit European automobiles have traditionally been rated in.
- mechanical horsepower hp
- Exactly 550 foot-pounds-force per second, which works out at 745.69987 watts — not a round number in watts, because it was never defined in them. The unit American automobiles and industrial equipment are rated in. European cars are usually rated in metric horsepower (PS) instead, which is smaller.
Where these come from
- 1 metric horsepower = 735.49875 watts
- 1 mechanical horsepower = 745.6998715822702 watts
Every other number on this page is computed from those, and each category is pinned to conversions worked out by hand from the units' primary definitions before it ships.
Conversion tables
| metric horsepower (PS) | mechanical horsepower (hp) |
|---|---|
| 1 | 0.98632 |
| 2 | 1.97264 |
| 3 | 2.95896 |
| 4 | 3.94528 |
| 5 | 4.9316 |
| 6 | 5.91792 |
| 7 | 6.90424 |
| 8 | 7.89056 |
| 9 | 8.87688 |
| 10 | 9.8632 |
| 20 | 19.7264 |
| 25 | 24.658 |
| 50 | 49.316 |
| 75 | 73.974 |
| 100 | 98.632 |
| mechanical horsepower (hp) | metric horsepower (PS) |
|---|---|
| 1 | 1.01387 |
| 2 | 2.02774 |
| 3 | 3.04161 |
| 4 | 4.05548 |
| 5 | 5.06935 |
| 6 | 6.08322 |
| 7 | 7.09709 |
| 8 | 8.11096 |
| 9 | 9.12483 |
| 10 | 10.1387 |
| 20 | 20.2774 |
| 25 | 25.3467 |
| 50 | 50.6935 |
| 75 | 76.0402 |
| 100 | 101.387 |
Questions
How many mechanical horsepower are in a metric horsepower?
1 metric horsepower = 0.98632 mechanical horsepower.
How do I convert metric horsepower to mechanical horsepower?
Use hp = PS × 0.98632. For example, 10 metric horsepower = 9.8632 mechanical horsepower.
How many metric horsepower are in one mechanical horsepower?
1 mechanical horsepower = 1.01387 metric horsepower.
What is 10 metric horsepower in mechanical horsepower?
10 metric horsepower = 9.8632 mechanical horsepower.
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