Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Metric horsepower to Kilowatts
Convert PS to kW instantly, then review the formula, assumptions, and rounding guidance.
Energy, work, heat & powerInstant result
Decimals
Formula result = input × 735.49875 ÷ 1000. 1 PS = 0.7355 kW
Common examples
One value, several units
Watts735.4988 W
Kilowatts0.7355 kW
Megawatts0.0007 MW
Mechanical horsepower0.9863 hp
BTU per hour2,509.6259 BTU/h
Conversion table
| PS | kW |
|---|---|
| 1 PS | 0.7355 kW |
| 2 PS | 1.471 kW |
| 5 PS | 3.6775 kW |
| 10 PS | 7.355 kW |
| 25 PS | 18.3875 kW |
| 50 PS | 36.7749 kW |
| 100 PS | 73.5499 kW |
Conversion chart
1 PS0.7355 kW
5 PS3.6775 kW
10 PS7.355 kW
25 PS18.3875 kW
50 PS36.7749 kW
Worked example
1 mechanical horsepower is approximately 745.7 watts.
Unit definition
Metric horsepower (PS) One metric horsepower equals 735.49875 watt.
Unit history
Metric horsepower is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert PS to watt.
3. Convert the base value to kW and apply your display precision.
Understand the result before using it
Metric horsepower to Kilowatts converts a value measured in Metric horsepower (PS) into the equivalent value in Kilowatts (kW). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 735.49875 ÷ 1000
Assumptions
- Metric horsepower and Kilowatts represent the same power quantity.
- The input is expressed in PS; the output is expressed in kW.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 PS = 0.73549875 kW. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a PS measurement in a document that expects kW.
- Compare a metric horsepower value with a value reported in kilowatts.
- Check the PS-to-kW arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse PS with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Metric horsepower to Kilowatts?
result = input × 735.49875 ÷ 1000 Using the displayed relationship, 1 PS equals 0.73549875 kW.
How many Kilowatts are in one Metric horsepower?
One Metric horsepower is 0.73549875 Kilowatts. The displayed digits may be rounded.
Can I reverse the PS to kW conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts kW back to PS.
Is the Metric horsepower to Kilowatts result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.