Transportation
Home EV Charger Electricity Cost Calculator
Estimate home EV charging cost from charger power, charging hours, and electricity price.
Default wattage 7200 W
Monthly use 432 kWh
Monthly cost $71.02
Yearly cost $852.25
How to estimate the cost
Start with the default wattage range of 1400 W to 11500 W, then replace it with the value on your appliance label or an energy meter reading. The calculator uses 16.44 cents/kWh as a planning baseline until you enter your own rate.
Scenario comparison
Use the table to test whether wattage or runtime matters more for this appliance before changing settings, replacing equipment, or buying a measurement tool.
| Scenario | Assumption | Monthly use | Monthly cost | Yearly cost |
|---|---|---|---|---|
| Lower-use case | 1400 W x 1 hr/day x 30 days
Useful for lower settings, shorter sessions, or better controls. | 42 kWh | $6.90 | $82.86 |
| Default estimate | 7200 W x 2 hr/day x 30 days
Uses the preset shown in the calculator and summary above. | 432 kWh | $71.02 | $852.25 |
| Higher-use case | 11500 W x 3 hr/day x 30 days
Useful for long runtimes, high settings, or seasonal spikes. | 1,035 kWh | $170.15 | $2,041.85 |
What changes the real cost
- Make clear that charger rating is not the same as energy added to the battery.
- Add time-of-use rate support before publishing comparison pages.
- Avoid recommending electrical work without professional disclaimers.
Money-saving angle
Best next checks for this topic: Level 2 chargers, time-of-use planning worksheets, cable organizers, and energy monitoring.