The watt
The watt (W) is the SI derived unit of power, equal to one joule per second. It is the standard unit for the rated power of every electrical device and every modern engine specification outside automotive marketing.
1 W = 0.00135962 PS
1 watt equals 0.00135962 metric horsepower. To convert watts to metric horsepower, multiply the watt value by 0.00135962. For quick reference: 1 W = 0.00135962 PS, 5 W = 0.00679811 PS, 10 W = 0.0135962 PS, 100 W = 0.135962 PS.
Metric horsepower = Watts × 0.00135962Start with your value in watts.
Multiply the watt value by 0.00135962. This is the exact conversion factor from watts to metric horsepower.
The product is your value in metric horsepower. For example, 5 W × 0.00135962 = 0.00679811 PS.
The exact factor from watts to metric horsepower is 0.00135962.
Metric horsepower = Watts × 0.00135962
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Watts (W) | Metric horsepower (PS) |
|---|---|
| 0.1 W | 0.00013596 PS |
| 0.5 W | 0.00067981 PS |
| 1 W | 0.0013596 PS |
| 2 W | 0.0027192 PS |
| 5 W | 0.0067981 PS |
| 8 W | 0.010877 PS |
| 10 W | 0.013596 PS |
| 15 W | 0.020394 PS |
| 20 W | 0.027192 PS |
| 25 W | 0.033991 PS |
| 30 W | 0.040789 PS |
| 40 W | 0.054385 PS |
| 50 W | 0.067981 PS |
| 60 W | 0.081577 PS |
| 75 W | 0.10197 PS |
| 100 W | 0.13596 PS |
| 125 W | 0.16995 PS |
| 150 W | 0.20394 PS |
| 200 W | 0.27192 PS |
| 250 W | 0.33991 PS |
| 300 W | 0.40789 PS |
| 400 W | 0.54385 PS |
| 500 W | 0.67981 PS |
| 600 W | 0.81577 PS |
| 750 W | 1.0197 PS |
| 800 W | 1.0877 PS |
| 1000 W | 1.3596 PS |
| 1200 W | 1.6315 PS |
| 1500 W | 2.0394 PS |
| 1800 W | 2.4473 PS |
| 2000 W | 2.7192 PS |
| 2500 W | 3.3991 PS |
| 3000 W | 4.0789 PS |
| 5000 W | 6.7981 PS |
| 7500 W | 10.197 PS |
| 10000 W | 13.596 PS |
| 15000 W | 20.394 PS |
| 20000 W | 27.192 PS |
| 25000 W | 33.991 PS |
| 50000 W | 67.981 PS |
| 75000 W | 101.97 PS |
| 100000 W | 135.96 PS |
| 200000 W | 271.92 PS |
| 500000 W | 679.81 PS |
| 1000000 W | 1359.6 PS |
| 2000000 W | 2719.2 PS |
| 5000000 W | 6798.1 PS |
| 10000000 W | 13596 PS |
| 100000000 W | 135962 PS |
| 1000000000 W | 1359622 PS |
An LED bulb uses about 8 W. A typical microwave oven draws around 1,000 W.
The watt (W) is the SI derived unit of power, equal to one joule per second. It is the standard unit for the rated power of every electrical device and every modern engine specification outside automotive marketing.
Metric horsepower (PS in German, CV in French and Italian) is defined as exactly 75 kgf·m/s, or 735.49875 W. It is about 1.4% smaller than mechanical (imperial) horsepower, which matters for spec comparisons across markets.