Metric Horsepower to Watts
Convert metric horsepower to watts instantly — one metric horsepower is 735.499 watts.
| Metric Horsepower | Watts |
|---|---|
| 1 PS | 735.49875 W |
| 2 PS | 1470.9975 W |
| 3 PS | 2206.49625 W |
| 5 PS | 3677.49375 W |
| 10 PS | 7354.9875 W |
| 25 PS | 18387.46875 W |
| 50 PS | 36774.9375 W |
| 100 PS | 73549.875 W |
How to use
- Enter a value in the Metric Horsepower field.
- The Watts figure appears immediately — no button to press.
- Typing in the Watts field converts back to Metric Horsepower the same way.
- Use the reference table for the values that come up most often.
Metric Horsepower to Watts formula
To convert metric horsepower to watts, multiply by 735.49875.
W = PS × 735.49875
Why this factor: the metric horsepower and the watt are both defined against the watt, so dividing one definition by the other gives 735.49875 directly. Both definitions are set out in full below.
To go the other way, divide by 735.49875 — or use the Watts to Metric Horsepower converter, which is the same calculation reversed.
Worked example
Given 75 PS, multiplying by 735.49875 yields 55162.40625 W.
75 PS × 735.49875 = 55162.40625 W
The converter above does this for any value you type, in either direction.
What is a metric horsepower?
Metric horsepower, written PS or CV, is the continental European engine power unit.
Definition: Defined as 75 kilogram-force meters per second, which is exactly 735.49875 watts.
Where it is used: German, French, Italian and Japanese vehicle specifications, where power is quoted in PS, CV or ps.
Worth knowing: About 98.6% of a mechanical horsepower, which is why converted figures never come out as round numbers.
What is a watt?
The watt is the SI unit of power — the rate of one joule of energy per second.
Definition: Defined as 1 J/s. Named after James Watt.
Where it is used: Appliance and light-bulb ratings, audio output, and all scientific power calculations.
Metric Horsepower vs Watts
The metric horsepower is a metric unit while the watt is an SI unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many watts are in a metric horsepower?
One metric horsepower equals 735.49875 watts.
What is the formula to convert metric horsepower to watts?
Multiply the number of metric horsepower by 735.49875. To reverse it, divide by 735.49875 instead.
How do I convert watts back to metric horsepower?
Divide by 735.49875, which is the same as multiplying by 0.00135962162.
How many watts are in 10 metric horsepower?
10 PS works out to 7354.9875 W.
Is there anything to watch out for with metric horsepower?
About 98.6% of a mechanical horsepower, which is why converted figures never come out as round numbers.
How is the metric horsepower defined?
Defined as 75 kilogram-force meters per second, which is exactly 735.49875 watts.