We use Google Analytics to understand how the site is used. Accept to enable analytics cookies, or decline to browse without them. Privacy Policy
Power Converter · Free, instant results with formula and a full conversion table
As an Amazon Associate I earn from qualifying purchases.
To convert Watt to Metric Horsepower: multiply by 0.00135962. 1 W × 0.00135962 = 0.00135962 PS
| Watt (W) | Metric Horsepower (PS) |
|---|---|
| 0.1 W | 0.000135962 PS |
| 0.25 W | 0.000339905 PS |
| 0.5 W | 0.000679811 PS |
| 1 W | 0.00135962 PS |
| 2 W | 0.00271924 PS |
| 5 W | 0.00679811 PS |
| 10 W | 0.0135962 PS |
| 20 W | 0.0271924 PS |
| 25 W | 0.0339905 PS |
| 50 W | 0.0679811 PS |
| 100 W | 0.135962 PS |
| 250 W | 0.339905 PS |
| 500 W | 0.679811 PS |
| 1,000 W | 1.35962 PS |
Use our free watt to metric horsepower converter to get accurate results in under one second. This power conversion tool is essential for anyone working in automotive engineering, electric vehicles, electrical systems, and machinery specification. Simply enter your value above, click Convert, and see the result instantly with the exact formula shown. You can also reverse the conversion, copy the result, or adjust decimal precision.
The conversion formula is a single constant factor: 1 Watt equals 0.00135962 Metric Horsepower. Multiply any watt value by 0.00135962 to obtain the equivalent in metric horsepower. All calculations on ConvertNow use verified constants, and the table below is computed with the same factor.
Quick estimate: divide watt by 740 instead of multiplying by 0.00135962 — within about 0.6% of the exact result.
Each example below is worked with the exact formula, step by step — so you can check the math or adapt it to your own numbers.
| Value | Working | Result |
|---|---|---|
| 1 W | 1 W × 0.00135962 = | 0.001 PS |
| 10 W | 10 W × 0.00135962 = | 0.014 PS |
| 1000 W | 1000 W × 0.00135962 = | 1.36 PS |
| 10000 W | 10000 W × 0.00135962 = | 13.596 PS |
Watt (W) is part of the SI (metric) measurement system, while Metric Horsepower (PS) belongs to the Metric (continental European) system. The difference matters because a recipe, blueprint, or technical spec written in one system will not match measurements in the other unless converted precisely. Mixing systems without conversion can lead to comparing an EV motor in kilowatts against a gasoline engine in horsepower without converting, and undersizing a generator.
Power conversions are used every day in automotive engineering, electric vehicles, electrical systems, and machinery specification. Professionals in these fields rely on fast, accurate tools because even small rounding errors multiply across large datasets or recipes. ConvertNow keeps your workflow moving with instant results, so you never have to open a spreadsheet or do manual math.
Common mistakes when converting watt to metric horsepower include confusing mechanical horsepower (hp) with metric horsepower (PS), which differ by about 1.4%, and confusing power (kW) with energy (kWh) when comparing motors and batteries, and rounding too early in the calculation. Always verify the direction of the conversion and use the swap button if you need to reverse it.
The following table shows 20 common conversion values from watt to metric horsepower for fast reference without calculator use.
| Watt (W) | Metric Horsepower (PS) |
|---|---|
| 0.1 | 0.00014 |
| 0.25 | 0.00034 |
| 0.5 | 0.00068 |
| 0.75 | 0.001 |
| 1 | 0.001 |
| 2 | 0.003 |
| 3 | 0.004 |
| 5 | 0.007 |
| 10 | 0.014 |
| 15 | 0.02 |
| 20 | 0.027 |
| 25 | 0.034 |
| 50 | 0.068 |
| 75 | 0.102 |
| 100 | 0.136 |
| 150 | 0.204 |
| 200 | 0.272 |
| 250 | 0.34 |
| 300 | 0.408 |
| 500 | 0.68 |
There are 0.00135962 metric horsepower in 1 watt.
Multiply your watt value by 0.00135962. The factor is very small, so mental math is impractical for this pair — the converter above gives an exact result instantly.
The Watt is the smaller unit of the two: 1 Watt equals 0.00135962 Metric Horsepower.
Watt is primarily used in science, engineering and electrical ratings worldwide. Metric Horsepower is primarily used in continental Europe, for car engine ratings (PS/CV).
Yes. Install ConvertNow as a Progressive Web App and perform this conversion offline. If you need currency rates, an internet connection is required because those update live.
Accurate conversion prevents costly errors in automotive engineering, electric vehicles, electrical systems, and machinery specification. Using the wrong unit can lead to comparing an EV motor in kilowatts against a gasoline engine in horsepower without converting, and undersizing a generator.
Need the opposite direction? Use the Metric Horsepower to Watt Converter to convert metric horsepower back to watt.
Browse every tool in this category on the Power Converter hub page.