Milliwatts to Metric Horsepower (PS) Converter
Enter a value to instantly convert between power units.
1 Milliwatt = 0 Horsepower (metric)
Key Formulas
Kilowatt → Horsepower (mech)
hp = kW × 1.34102Horsepower (mech) → Kilowatt
kW = hp × 0.7457Watt → Kilowatt
kW = W × 0.001Kilowatt → Watt
W = kW × 1000Formula
PS = mW ÷ 735,498.75Converting milliwatts to PS is mainly useful in educational contexts and when comparing micro-motor ratings across different specification systems. A small 250 mW lab motor is 0.00034 PS — a tiny fraction of the automotive unit. This conversion also helps illustrate the immense scale difference between everyday electronics and the power units used for vehicles and machinery.
Source: NIST SP 811, Table B.8
Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
735.5 mW = 0.001 PS (1 millihorsepower metric) — the smallest meaningful PS unit, used in some European micro-motor specifications.
735.5 mW = 0.001 PS
A 5,000 mW (5 W) small gearmotor = 0.0068 PS — typical for small automation actuators in European robotics.
5000 mW = 0.0068 PS
A 100,000 mW (100 W) small electric motor = 0.136 PS — used in e-bikes and small European agricultural equipment.
100000 mW = 0.136 PS
735,499 mW = 1 PS — the fundamental metric horsepower, equal to 75 kgf·m/s.
735499 mW = 1 PS