Metric Horsepower (PS) to Milliwatts Converter
Enter a value to instantly convert between power units.
1 Horsepower (metric) = 735498.75 Milliwatt
Key Formulas
Kilowatt → Horsepower (mech)
hp = kW × 1.34102Horsepower (mech) → Kilowatt
kW = hp × 0.7457Watt → Kilowatt
kW = W × 0.001Kilowatt → Watt
W = kW × 1000Formula
mW = PS × 735498.75Fractional metric horsepower motors appear in small European appliances and instruments, sometimes listed in millihorsepower or tiny PS fractions. Converting to milliwatts enables comparison to electronic component ratings. A 0.001 PS clock motor = 735.5 mW = 0.7355 W — directly comparable to a bright LED in power consumption.
Source: NIST SP 811, Table B.8
Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
A 0.001 PS miniature instrument motor = 735.5 mW — similar in power to a bright white LED in terms of electrical draw.
0.001 PS = 735.5 mW
A 0.01 PS small fan or pump motor = 7,355 mW = 7.36 W — typical for a small aquarium pump or computer cooling fan.
0.01 PS = 7355 mW
A 0.1 PS European appliance motor = 73,550 mW = 73.6 W — found in range hood fans and small power tools.
0.1 PS = 73550 mW
1 PS = 735,499 mW = 735.5 W — the metric horsepower standard, compared to 745,700 mW for mechanical hp.
1 PS = 735499 mW