ChargeMath

Calculate Your EV Charging Costs

Free, accurate calculators powered by real EPA vehicle data and state-specific electricity rates. No sign-up required.

Plus: Charge Time · Charger ROI · Range · Tax Credits · Bill Impact

EV Calculators

Why ChargeMath?

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Real EPA Data

Vehicle efficiency and range data sourced directly from fueleconomy.gov for 20+ popular EVs.

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State-Specific Rates

Electricity rates for all 50 states plus DC, sourced from EIA residential averages.

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Save Money

Find out exactly how much you'll save per month and per year by switching from gas to electric.