Inverter Size for a Tool Charger Calculator

Will your inverter run the charger?

The charger's input watts or amps are on its label. Watts = volts × amps. Everything is worked out in your browser. Nothing is saved or sent anywhere.

1. Chargers

If the label only shows amps, multiply by 240.

2. Margin

3. Results

How it was worked out

    What this does and doesn't tell you

    • Use a pure sine inverter. Some chargers won't work, or run hot, on modified sine.
    • Lithium-ion tool packs can short, overheat and catch fire if they're damaged, wired wrongly or charged on the wrong charger. Only use the maker's charger for the pack.
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