About the EV Charging Time Calculator
How long an electric car takes to charge on any charger, from 3 kW home to 150 kW rapid.
Also known as: electric car charge time, how long to charge ev, charging speed calculator, rapid charge time.
How to use this calculator
- Enter battery capacity, charge from, charge to, charger and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
time = kWh to add ÷ (charger kW × efficiency)
Worked example
Using the values pre-filled in the calculator above:
- Battery capacity = 60 kWh
- Charge from = 20 %
- Charge to = 80 %
- Charger: Home wallbox (7.4 kW)
- Charging efficiency = 90 %
the calculator returns:
- Charging time: 5 h 24 min
- Decimal hours: 5.405
- Energy added: 36 kWh
- Charger power: 7.4 kW