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EV Charging Cost Calculator: Cost to Charge an Electric Car

Find what it costs to charge your electric car per month, per year, per mile and per full charge, and how much you save compared with gas.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Scope: estimated electricity cost for one all-electric car charged at one price per kWh (home, work or a public charger), plus an optional gas-car fuel comparison. Not included: plug-in hybrids that also burn gas, time-of-use or tiered rates (use your average price, or the off-peak price if you only charge then), public charger session, idle or membership fees, demand charges, charger installation, taxes on top of the rate, tolls, maintenance and cold-weather range loss. The math is the EPA fuel cost formula: yearly cost = price per kWh ÷ miles per kWh × miles per year, which is the same as kWh per 100 miles ÷ 100 × miles × price. Defaults: 15,000 miles a year (what the EPA window sticker uses), $0.18 per kWh (EIA U.S. average home price was 18.16 cents for August 2026) and $4.27 a gallon (EIA U.S. average regular gas, week of October 26, 2026). Prices change and differ by state and utility, so type your own from your power bill and local pump. Charging loss: the U.S. Department of Energy says about 16% of the energy is lost between the wall and the battery. Leave it at 0 if your kWh number already counts that (for example a reading from your home charger or utility meter); add it if your number comes from the car’s trip screen. Everything stays in this browser tab; nothing is sent or saved. Independent ToolsKo estimate. Sources reviewed November 12, 2026.

How to use it (step by step)

  1. 1Type your EV’s efficiency in kWh per 100 miles. You find it on the window sticker or by searching your car on fueleconomy.gov (most cars are about 25 to 50; lower is better).
  2. 2Type your electricity price per kWh from your power bill (divide the bill total by the kWh used if no rate is shown) and how many miles you drive in a year.
  3. 3Read the yearly, monthly and per-mile cost. Optional: add your battery size to see a full-charge cost, and your gas car’s MPG and gas price to see how much you save.

Words to know

kWh (kilowatt-hour)
The unit your power company bills you in. One kWh is the energy a 1,000-watt appliance uses in one hour.
kWh per 100 miles
How much electricity the car needs to drive 100 miles. It works like miles per gallon in reverse: a smaller number means a cheaper car to run.
Charging loss
A bit of electricity turns into heat in the charger and battery while charging, so more comes out of the wall than goes into the battery.
Break-even gas price
The price per gallon at which your gas car would cost the same per mile as charging the EV.

Explore tools for Australia, the US & Europe →

Sources & methods

References checked November 11, 2026. Read each tool’s scope and assumptions before relying on its result.

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