Electrical Power Calculator
Calculate power in watts from voltage and current, with kWh per hour. The result updates as you type, with the working underneath so you can check it.
Your details
Result
Power
2,300 W
- Kilowatts
- 2.3
- Energy per hour
- 2.3 kWh
Good to know: P = V × I
Please note: For study and planning. Check calculations independently before using results with chemicals, electricity, pressure or machinery, and follow safety data sheets, manufacturer instructions and local regulations.
About this tool
Formula
P = V × I
Questions people ask
How many watts is 230 V at 10 A?
2,300 W for a resistive load. For AC motors multiply by the power factor.
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How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it.
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