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Metric horsepower to Watt

Exact answer: 1 PS = 735.49875 W (exact defined factor)

Metric horsepower and Watt describe the same quantity from the Power family but come from different systems of units. The factor is defined exactly. Power figures appear in vehicle documents, engine data, heating load calculations and appliance ratings.

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From1 PS
Result735.49875 W
Factor1 PS = 735.49875 W
Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

011 PS = 735.49875 W

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

PS and hp are not identical. Vehicle data often uses metric horsepower, while US/UK contexts often use mechanical horsepower.

03Base unit: W

1 PS = 735.49875 W. Then the value is converted through the base unit W into Watt.

Table

Metric horsepower to Watt
Metric horsepowerWatt
1735.49875
107,354.9875
5036,774.9375
10073,549.875
200147,099.75
1,000735,498.75

Formula

1 PS = 735.49875 W. Then the value is converted through the base unit W into Watt.

Sources

BIPM SI BrochureSI base units, prefixes and official SI context.NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.

Related conversions

Kilowatt to Metric horsepowerkW → PSPowerMetric horsepower to KilowattPS → kWPowerWatt to BTU per hourW → BTU/hPowerWatt to KilowattW → kWPower

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Power. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Metric horsepower to Watt?

1 PS = 735.49875 W

Which formula does Metric horsepower to Watt use?

1 PS = 735.49875 W. Then the value is converted through the base unit W into Watt.

What is the most common mistake?

PS and hp are not identical. Vehicle data often uses metric horsepower, while US/UK contexts often use mechanical horsepower.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.