Power Converter
Instantly convert between different power units including watts, kilowatts, megawatts, horsepower, BTU/hr, and more. Accurate conversions for engineering, electrical work, and energy calculations.
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About Power Units
Power is the rate at which energy is transferred or converted. The SI unit for power is the watt (W), equal to one joule per second. Common conversions include 1 kW = 1000 W, 1 hp = 745.7 W.
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Conversion Accuracy
Adjust decimal places for more precise conversions. Higher precision is useful for engineering and scientific calculations where small differences matter.
Conversion Results
Conversion Result
Power Unit Comparison
| Unit | Symbol | Equivalent in Watts | Example Value |
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Power Conversion Formulas
Common Power Conversion Formulas
1 Watt (W) = 1 joule per second
1 Kilowatt (kW) = 1,000 W
1 Megawatt (MW) = 1,000,000 W
1 Horsepower (hp) ≈ 745.7 W
1 BTU/hr ≈ 0.293071 W
1 Calorie per second (cal/s) ≈ 4.1868 W
Conversion Formula
Basic Conversion Formula
Result = Input Value × (From Unit in Watts / To Unit in Watts)
To convert between power units: Multiply the input value by the conversion factor ratio. Convert the from unit to its watt equivalent, then divide by the to unit’s watt equivalent.
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