Metric Horsepower to Watts Converter
Enter the power in metric horsepower below to convert it to watts.
Convert Metric Horsepower to Watts
Enter a value in metric horsepower (PS) to convert to watts (W).
Horsepower to Watt Conversion Table
Table showing various horsepower measurements converted to watts. Click any preset value or arrow to load it into the converter.
| Metric Horsepower (PS) | Watts (W) |
|---|---|
| 1 PS | 735.49875 W |
| 2 PS | 1,470.9975 W |
| 2.5 PS | 1,838.746875 W |
| 5 PS | 3,677.49375 W |
| 10 PS | 7,354.9875 W |
| 15 PS | 11,032.48125 W |
| 20 PS | 14,709.975 W |
| 25 PS | 18,387.46875 W |
| 30 PS | 22,064.9625 W |
| 50 PS | 36,774.9375 W |
How to Convert Metric Horsepower to Watts
To convert metric horsepower to watts, multiply the power by the following conversion ratio: 735.49875 watts/horsepower.
Since one horsepower is equal to 735.49875 watts, you can use this simple formula to convert:
The power in watts is equal to the power in metric horsepower multiplied by 735.49875.
For example, here's how to convert 5 metric horsepower to watts using the formula above.
How Many Watts Are in a Horsepower?
There are 735.49875 watts in a horsepower, which is why we use this value in the formula above.
Our horsepower to watt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Metric Horsepower and watts are both units used to measure power. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Watt?
Coherent SI unit of power equal to 1 Joule per second (1 J/s). It serves as a primary reference unit for measuring power across scientific and practical applications. [2]
The watt is classified as an International System of Units (SI) unit of power. Watts can be abbreviated as W; for example, 1 watt can be written as 1 W.
As the primary coherent reference unit for power in this category, all other power units are mathematically anchored to the watt (W).
In practice, watts (W) are widely used across standard power applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting power between metric horsepower (PS) and watts (W), keep full floating-point precision (1 PS = 735.49875 W; 1 W = 0.0013596 PS) during intermediate calculations and round only the final watt figure to match your instrument tolerance.
More Horsepower & Watt Conversions
Need to calculate in the opposite direction? Use our watts to metric horsepower calculator to switch your starting unit immediately. You can also explore related tools such as converting watts to metric horsepower, converting horsepower (hp) to watts, or converting btu/hr to watts.
Convert from Metric Horsepower
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Metric Horsepower (PS) to Watts (W)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Horsepower (Metric PS) (PS) & Watt (W)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (PS to W)