Conversions

kWh to Watts Calculator

If you know how much energy something used (kWh) and over how long, this calculator works out the average power draw in watts.

Your details

kWh
h

Results

Average power
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Last updated June 30, 2026. Results update automatically as you type.

How it works

Average power (watts) = energy (kWh) × 1000 ÷ hours. So 10 kWh used over 5 hours is an average draw of 2,000 W.

Frequently asked questions

Is this the same as peak power?

No — it is the average power over the period. Actual draw can spike higher or drop lower; this smooths it into a single average figure.

How do I convert kWh to watts?

Multiply kWh by 1000 to get watt-hours, then divide by the number of hours it was used.

What if I only know daily kWh?

Use 24 hours to get the round-the-clock average, or the actual hours it ran for a more useful figure.

These calculators provide general estimates for educational purposes only and are not financial advice. Real-world results depend on factors not captured here. Verify figures independently before making any purchase or financial decision.

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