EV Charging Cost Calculator

What one charge of your battery costs, at home or at a public charger, from the price per kWh.

Formula

Charging cost = Battery capacity (kWh) × Δ% / 100 / Charging efficiency (%) × Electricity price (per kWh)

Assumptions

Charging efficiency (≈ 90% on AC, higher on DC) covers charger/battery losses; real power tapers near full and in cold weather, so actual time can be longer.

How to read it

The real cost is mostly about the tariff: home charging off-peak is often 3–5 times cheaper than a highway fast charger. Charging losses (5–15%) are billed — you pay for what leaves the grid, not what ends up in the battery.

Continue with

Next tools

Electric vehiclesEV Cost per 100 km CalculatorConsumption in kWh/100 km and price per kWh: what 100 km cost in an EV, and the cost per km.Calculate →Electric vehiclesHome vs Public EV Charging Cost ComparisonCompare annual charging cost by your mix of home charging and public charging.Calculate →Electric vehiclesEV vs Gas Cost CalculatorAnnual energy cost of driving electric versus petrol, for the same mileage.Calculate →