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EV vs gas cost in Washington: $1,546 a year saved at 12,000 miles
With Washington electricity at 14.40¢/kWh and regular gasoline at $5.33/gal, a typical EV (0.3 kWh/mile, charged 80% at home) costs about 6.2¢ per mile to run versus 19.0¢ per mile for a 28 mpg gas car. That beats gas by $1,546 a year at 12,000 miles. Washington ranks #1 of 51 (50 states + DC) for annual savings and #15 for lowest residential electricity price.
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What the Washington numbers say
- Electricity: Washington residential average is 14.40¢/kWh year-to-date through July 2026, 21% below the U.S. average of 18.19¢. It is up 13.0% from the same period in 2025. Latest single month (July 2026): 14.71¢.
- Gasoline: $5.33/gal (EIA state series), up $1.03 from a year ago. The U.S. average is $4.28.
- Cost-equivalent MPG: a gas car would need about 87 mpg to cost the same per mile as this EV in Washington.
- If prices move: at 20% cheaper gas ($4.27) the yearly EV saving would be $1,089; at 20% higher electricity (17.28¢) it would be $1,463.
What this leaves out: purchase price, tax credits, insurance, maintenance, depreciation, home charger installation, time-of-use rates and cold-weather range loss. Your utility's own rate may differ from the state average. See the methodology.
Cost to run common things in Washington
- Space heater (1,500 W): $0.22 per hour
- Electric blanket (200 W): $0.23 per 8-hour night
- Window air conditioner (1,000 W): $0.14 per hour
- Electric clothes dryer: $0.43 per load
- Dishwasher: $0.14 per load
- Refrigerator: $65 per year
- Gaming PC (300 W under load): $0.04 per hour
- EV home charging (per 100 miles): $4.32 per 100 miles
Heating this winter? In Washington a heat pump costs about $16.88 per million BTU of heat vs $17.40 for a gas furnace and $30.95 for propane. Heat pump vs furnace in Washington.