EV charge time calculator
Charge time is battery capacity divided by charger output power. The grid below covers the common home charger power levels across typical battery sizes; the calculator underneath covers any battery and the charge rates the catalog clusters at. The list is the distinct ratings across the database, not one entry per model. Real sessions run slightly longer because charging tapers near full; a 10 percent margin is a reasonable planning buffer.
Start from your car
Your charge time
- Charge time, empty to full
- 6.5 hours
- Allowing for the taper near full
- 7.2 hours
Every charger power at a glance
| Battery size | 7.68 kW charger | 9.6 kW charger | 11.52 kW charger | 19.2 kW charger |
|---|---|---|---|---|
| 40 kWh | 5.2 h | 4.2 h | 3.5 h | 2.1 h |
| 60 kWh | 7.8 h | 6.3 h | 5.2 h | 3.1 h |
| 75 kWh | 9.8 h | 7.8 h | 6.5 h | 3.9 h |
| 100 kWh | 13.0 h | 10.4 h | 8.7 h | 5.2 h |
The grid assumes the car accepts the charger's full output. Many EVs cap AC charging at 11.5 kW or less, so a higher-output charger does not shorten the time; picking your car in the calculator applies its real limit.
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Charge time questions
- How long does it take to charge an EV at home?
- Energy drawn divided by charger power. A 75 kWh pack draws about 84 kWh from the wall, so on a 7.68 kW unit that is about 10.9 hours from empty to full. Add roughly 10 percent for the taper near the top of the pack, which no charger can shorten.
- Does a higher powered unit always charge faster?
- Only up to whatever the car itself accepts. The car and the wall unit negotiate the lower of the two rates, so on a Rivian R1S, whose onboard AC limit is a verified 11.5 kW, a 14.4 kW unit still delivers 11.5 kW and the extra capacity is spent. Pick your vehicle above and this calculator applies that ceiling for you.
- Why does a full charge use more energy than the pack holds?
- Because some of it becomes heat in the cable, the onboard converter and the pack itself. This calculator applies a factor of 1.12, about 12 percent, which is what the EPA's own per vehicle wall energy figures show. Pick a vehicle instead of typing a capacity and the EPA wall figure is used directly, losses already inside it.
- Which power levels does this cover?
- The distinct ratings across the 244 models in the database rather than one entry per model, which for 240 volt units runs from 3.84 kW to 23.04 kW. Every rating in the list is one a model here is actually sold at.
Prices and specifications verified September 9, 2026, and re-checked weekly after that. How these numbers are checked.
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