Power Converter
Convert between pW, nW, µW, mW, W, kW, MW. Free, with no limits and no account needed.
About Power Units
Power is measured in watts (W) and is the rate at which energy is used — in a DC circuit, voltage times current.
Power in electronics ranges from microwatts (energy-harvesting sensors) to kilowatts (motor drives). Because power scales as voltage times current, prefix mistakes on either factor carry straight through to your thermal and battery-life budgets.
Example conversions
- 3.3 V x 80 mA = 0.264 W = 264 mW — an active sensor node.
- 1.5 kW = 1,500,000 mW — a small motor.
Frequently asked questions
How do I convert milliwatts to watts?
Divide by 1000. 264 mW is 0.264 W.
How do I convert watts to kilowatts?
Divide by 1000. 1500 W is 1.5 kW.
How do I convert microwatts to milliwatts?
Divide by 1000. 500 µW is 0.5 mW.
Related converters
Power is closely related to these quantities in everyday electronics work.