Milliwatts to Metric Horsepower Converter
Enter the power in milliwatts below to convert it to metric horsepower.
Convert Milliwatts to Metric Horsepower
Enter a value in milliwatts (mW) to convert to metric horsepower (PS).
Milliwatt to Horsepower Conversion Table
Table showing various milliwatt measurements converted to metric horsepower. Click any preset value or arrow to load it into the converter.
| Milliwatts (mW) | Metric Horsepower (PS) |
|---|---|
| 1 mW | 0.00000136 PS |
| 10 mW | 0.000013596 PS |
| 100 mW | 0.000135962 PS |
| 1,000 mW | 0.0013596 PS |
| 10,000 mW | 0.0135962 PS |
| 100,000 mW | 0.1359622 PS |
| 1,000,000 mW | 1.3596216 PS |
| 5,000,000 mW | 6.7981081 PS |
| 10,000,000 mW | 13.5962162 PS |
| 25,400,000 mW | 34.5343891 PS |
How to Convert Milliwatts to Metric Horsepower
To convert milliwatts to metric horsepower, multiply the power by the following conversion ratio: 0.00000136 metric horsepower/milliwatt.
Since one milliwatt is equal to 0.00000136 metric horsepower, you can use this simple formula to convert:
The power in metric horsepower is equal to the power in milliwatts multiplied by 0.00000136.
For example, here's how to convert 5 milliwatts to metric horsepower using the formula above.
How Many Metric Horsepower Are in a Milliwatt?
There are 0.00000136 metric horsepower in a milliwatt, which is why we use this value in the formula above.
Our milliwatt to horsepower calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Milliwatts and metric horsepower are both units used to measure power. Keep reading to learn more about each unit.
What Is a Milliwatt?
A milliwatt is a unit of power equal to 1/1,000 of a watt (0.001 W). One-thousandth of a Watt. [1]
The milliwatt is classified as a metric and SI-compatible unit of power. Milliwatts can be abbreviated as mW; for example, 1 milliwatt can be written as 1 mW.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliwatt (mW) a convenient decimal multiple of the watt (W).
In practice, milliwatts (mW) are widely used across fine-tolerance laboratory, analytical, and micro-scale power measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Horsepower?
A horsepower is a unit of power equal to 735.49875 watts (W), the base unit for power. Metric horsepower (75 kgf·m/s = 735.49875 W). [2]
The horsepower is classified as a metric and SI-compatible unit of power. Metric Horsepower can be abbreviated as PS; for example, 1 horsepower can be written as 1 PS.
When working with metric horsepower (PS) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, metric horsepower (PS) are widely used across standard power applications within SI metric workflows, engineering documentation, and technical data sheets.
When converting power between milliwatts (mW) and metric horsepower (PS), keep full floating-point precision (1 mW = 0.00000136 PS; 1 PS = 735,498.75 mW) during intermediate calculations and round only the final horsepower figure to match your instrument tolerance.
More Milliwatt & Horsepower Conversions
Need to calculate in the opposite direction? Use our metric horsepower to milliwatts calculator to switch your starting unit immediately. You can also explore related tools such as converting metric horsepower to milliwatts, converting horsepower (hp) to metric horsepower, or converting kilowatts to metric horsepower.
Convert from Milliwatts
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Milliwatts (mW) to Metric Horsepower (PS)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Milliwatt (mW) & Horsepower (Metric PS) (PS)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (mW to PS)