MeterMath

EV vs gas Hawaii

EV charging cost in Hawaii vs gas

$66 a year saved by charging an electric car at home in Hawaii instead of buying gas.

Driving 12,000 miles a year, an EV costs about $1,790 to charge here and a 28 mpg gas car about $1,856 to fuel. Hawaii has the most expensive residential electricity of the 50 states and DC at 48.00¢/kWh, 162% above the U.S. average of 18.31¢.

¢/kWh
 
mi
$/gal
mpg
New car average is about 28.
mi/kWh
Sedans 3.5 to 4.5, trucks 2 to 2.5.
Public charging and charging losses
%
Road trips and fast charging.
$/kWh
AAA national average, October 16, 2026.
%
Energy lost between the outlet and the battery. Level 2 chargers lose about 10%.

How Hawaii compares

The $66 EV fuel saving here is the smallest of the 50 states and DC. The largest is $1,276 in Louisiana. The saving here is $1,018 less than the $1,084 a driver saves at the U.S. average price.

Gas would have to fall below $4.18 a gallon, from $4.33 now, before charging an EV in Hawaii stopped saving money.

Home electricity here costs more per kWh than the $0.42 public chargers averaged nationally on October 16, 2026, so charging on the road costs no more than charging at home. That is rare: in the typical state, public charging costs 2.6 times the home price.

Every neighboring state saves more, led by Washington at $1,207.

StateElectricityEV saving a year
Washington14.71¢$1,207
Oregon15.97¢$1,164
Alaska28.83¢$723
California33.61¢$559
Hawaii48.00¢$66

More for Hawaii

What these numbers assume

  • 12,000 miles a year.
  • An EV that goes 3.5 miles per kWh, with 10% of home charging energy lost between the outlet and the battery.
  • 10% of miles charged at public stations at $0.42/kWh, the AAA national average on October 16, 2026.
  • A 28 mpg gas car, with regular gas at $4.33 a gallon, the national average on October 12, 2026 (EIA weekly retail price survey).
  • Home electricity at the Hawaii average of 48.00¢/kWh.

Change any of them in the calculator above to match your own bills. The formulas are on the main EV vs gas calculator.

Sources

  • Electricity price: EIA Electric Power Monthly, Table 5.6.A (July 2026 data).
  • Gasoline: EIA weekly U.S. regular retail price, October 12, 2026.
  • Public charging: AAA national average, October 16, 2026.
  • Rankings: MeterMath calculation with the same inputs for all 50 states and DC.