Tool 12 · Charger
EV home charger time — Level 1 vs Level 2
Estimate charging hours from battery size, start and target charge, charger power and charging losses. Good for deciding whether a Level 2 outlet is worth it.
Use this free EV home charger time calculator to estimate charging hours, energy from the wall and miles recovered. Enter battery size, start and target charge, charger power and EV efficiency for an instant Level 1 or Level 2 planning estimate.
No email required. Instant browser-based planning math with clear assumptions.
Why charger time is not just battery ÷ outlet
- Charging losses: the model assumes about 90% wall-to-battery efficiency. Cold weather and battery conditioning can make real sessions slower.
- Daily reality: most homes do not charge 0–100%. Overnight recovery from 20% to 80%, or daily miles recovered, is the useful number.
- Solar connection: if you want the energy itself covered by panels, use the solar for EV charging calculator.
What this tool estimates
Use this free EV home charger time calculator to estimate charging hours, energy from the wall and miles recovered. Enter battery size, start and target charge, charger power and EV efficiency for an instant Level 1 or Level 2 planning estimate.
No email required. Results are calculated in your browser; use them as a planning estimate, not a guaranteed quote or savings forecast.
How the math works
Energy added equals battery capacity times the positive change in state of charge. Divide by user-entered wall-to-battery efficiency for wall energy, then divide by charger power for time. Driving consumption is battery-side. The 90% prefill is an example; charging taper, temperature and power limits can lengthen a session.
Key variables that change your result
Battery size and charge target
Charging from 20% to 80% needs far less energy than charging from near-empty to full.
Charger power
Level 1 and Level 2 equipment can deliver very different kW, subject to the vehicle and home's electrical circuit.
Charging losses
Wall energy is usually higher than the energy added to the battery because charging is not perfectly efficient.
Questions homeowners ask
How long does Level 2 EV charging take?
Is Level 2 charging faster than Level 1?
Does this charger calculator include charging losses?
State context matters
Find your state solar guide
Costs, incentives, export rules and payback inputs vary by state. Open your state guide before treating any calculator result as a buying decision.