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EV Charging Cost Calculator

Find out what it costs and how long it takes to charge your electric car.

  • Free
  • No sign-up
  • Nothing is sent or stored
kWh
%
%
per kWh
kW

Home wall box ≈ 7 kW, public DC fast ≈ 50–350 kW.

%
kWh/100 km

Result

Cost of this charge
$9.00
Energy added to the battery
45 kWh
50 kWh from the grid
Time to charge
6 h 45 min
DC fast charging slows down above ~80%
Range added
265 km (164 mi)
EV cost per 100 km
$3.40
Petrol cost per 100 km
$11.55
EV saves $8.15 per 100 km

The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved.

How to use the EV Charging Cost Calculator

  1. Enter your battery size and charge levels.
  2. Enter the electricity price and charger power.
  3. Read the cost, time and range added — and the petrol comparison.

What does this tool do?

Charging cost is the energy added divided by charging efficiency, times the price per kWh. About 10% is typically lost as heat when charging, more on slow chargers in cold weather.

Charging time is energy divided by charger power, but fast chargers slow down above roughly 80%, so real times for the last 20% are longer.

Why use it?

  • Cost, time and range.
  • Includes charging losses.
  • Petrol comparison.

Privacy

The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.

Last reviewed by the M2Toolkit team.

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