Power / W → PS
Convert Watts to Metric horsepower
Convert rates of energy transfer, including watts and explicitly defined horsepower. Convert Watts (W) to Metric horsepower (PS). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Metric horsepower to Watts →
How to convert watts to metric horsepower
Mechanical horsepower is 550 foot-pounds-force per second. Metric horsepower uses 75 kilogram-force meters per second and has a different value.
Use x for the value in W, b for the intermediate value in W, and y for the result in PS.
PS = W ÷ 735.49875
Worked examples
10 W ≈ 0.013596216173 PS
Step 1: (10 × 1) ≈ 10 W.
Step 2: 10 ÷ 735.49875 ≈ 0.013596216173 PS.20 W ≈ 0.0271924323461 PS
Step 1: (20 × 1) ≈ 20 W.
Step 2: 20 ÷ 735.49875 ≈ 0.0271924323461 PS.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Watts
Watts (W) measures power under the conventions above. The base value in W is (x × 1), where x is the numerical value in W. Factors shown here are rounded for display; calculations use the stored factor.
About Metric horsepower
Metric horsepower (PS) measures power under the conventions above. The base value in W is (x × 735.49875), where x is the numerical value in PS. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Watts to metric horsepower reference table
| Watts (W) | Metric horsepower (PS) |
|---|---|
| 1 | 0.0013596216173 |
| 5 | 0.00679810808652 |
| 10 | 0.013596216173 |
| 25 | 0.0339905404326 |
| 50 | 0.0679810808652 |
| 100 | 0.13596216173 |
| 1000 | 1.3596216173 |
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