The Real Cost of Owning a Car (and Going Electric)
Beyond the sticker price — depreciation, financing, fuel, insurance and maintenance — plus how electric cars compare on running cost, range and charging time, with a total-cost view.
EV Charging Time Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Charging time
9.01
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the EV Charging Time Calculator
The EV Charging Time Calculator works out your charging time in an instant. Enter battery capacity, charger power and charging efficiency and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the battery capacity.
- Enter the charger power.
- Enter the charging efficiency.
- Read off your charging time — the calculator updates automatically, with no button to press.
Formula
The EV Charging Time Calculator uses the formula:
Charging time = Battery capacity ÷ (Charger power × Charging efficiency ÷ 100)
Worked example
For example, with battery capacity of 60 kWh, charger power of 7.4 kW and charging efficiency of 9%, the charging time is 9.01.
| Battery capacity | 60 kWh |
|---|---|
| Charger power | 7.4 kW |
| Charging efficiency | 9% |
| Charging time | 9.01 |
|---|
Results are estimates for educational use, not professional advice.
Frequently asked questions
Divide the battery size by the charger power, adjusted for efficiency. A 60 kWh battery on a 7.4 kW charger at 90% takes about 9 hours.
Some energy is lost as heat during charging, so the real time is a little longer than battery ÷ charger power.
A 50 kW DC fast charger fills the same battery in roughly an hour, far quicker than a home AC charger.
For daily use, charging to 80% is gentler on the battery. Charge to full only when you need the maximum range.
The EV Charging Time Calculator uses the formula: Charging time = Battery capacity ÷ (Charger power × Charging efficiency ÷ 100). For example, with battery capacity of 60 kWh, charger power of 7.4 kW and charging efficiency of 9%, the charging time is 9.01.
Enter the battery capacity. Enter the charger power. Enter the charging efficiency. Read off your charging time — the calculator updates automatically, with no button to press.
Related guides
EV Charging Time Table: Charging time by Battery capacity
Reference table of charging time for EV Charging Time across a range of battery capacity values — exact, engine-computed figures you can read off at a glance.
How to Calculate EV Charging Time: Formula, Steps & Examples
Learn how to calculate EV Charging Time — the formula explained step by step, with worked examples and a free calculator to check your answer.