How many watts does an electric vehicle charger use?
An electric vehicle charger uses 1,400–7,600 W (about 7,200 W on average). Running 2 hours/day, that is about 14.40 kWh a day and 432.0 kWh a month — roughly $79.23 a month at the U.S. average rate of 18.34 ¢/kWh.
This is the electric vehicle charger electricity usage reference: watts, amps on a 240 V circuit, the kWh math, and links to what that usage costs in each state.
Watts, amps, and kWh for an electric vehicle charger
| Measure | Value |
|---|---|
| Rated wattage range | 1,400–7,600 W |
| Average draw used in our math | 7,200 W |
| Amps at 240 V | 5.8–32 A (30 A at the average draw) |
| kWh per hour | 7.20 kWh |
| kWh per day at 2 hours/day | 14.40 kWh |
| kWh per month | 432.0 kWh |
| Cost per month at the U.S. average (18.34 ¢/kWh) | $79.23 |
The math is kWh = watts × hours ÷ 1000 and amps = watts ÷ volts. An electric vehicle charger is normally wired for 240 V in US homes; a 120 V unit of the same wattage would draw twice the amps. For the dollars in your state, open cost to run an electric vehicle charger in Texas and switch states from there.
Electric Vehicle Charger electricity usage profile
| Metric | Value |
|---|---|
| kWh per hour | 7.20 kWh |
| kWh per day (typical) | 14.40 kWh |
| kWh per month (typical) | 432.0 kWh |
| kWh per year (typical) | 5256.0 kWh |
| Low runtime scenario | 1 hours/day |
| High runtime scenario | 4 hours/day |
Connect usage to cost tools
Related appliance usage pages
Source & Method
Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Last dataset period: June 2026. Usage calculations use fixed appliance wattage and runtime assumptions so results stay comparable across pages.
Cost to charge an electric car
The charger's wattage sets how fast a car fills; the battery sets how much it costs. See how much it costs to charge an electric car for twelve models at the U.S. average and every state's rate.
Frequently asked questions
How many watts does an electric vehicle charger use?
An electric vehicle charger uses 1,400–7,600 W (about 7,200 W on average). Our usage and cost math uses 7,200 watts running 2 hours/day.
How many amps does an electric vehicle charger draw?
On a 240 V circuit, 1,400–7,600 W works out to about 5.8–32 A; at the 7,200 W we use in the math that is 30 A.
How much electricity does an electric vehicle charger use per month?
About 432.0 kWh a month at 2 hours/day. Lighter use (1 hours/day) comes to roughly 216.0 kWh and heavier use (4 hours/day) roughly 864.0 kWh.
How much does it cost to run an electric vehicle charger?
About $79.23 a month at the U.S. average rate of 18.34 ¢/kWh — from roughly $56.64 in Nevada to $227.75 in Hawaii at the same usage. The state cost-to-run pages price it at every state's rate.