Hawaii

Gas vs. electric driving costs · adjust vehicle and price period below

2018Jan '26May '26
201820192020202120222023202420252026
Tie
< $25/yr
at 12k mi/yr
⛽ Gas · $4.39/gal
11.6¢/mi
⚡ Elec · 39.8¢/kWh
12.1¢/mi

Why is it like this in Hawaii?

Hawaii has the highest residential electricity rates in the United States — about 39.9¢/kWh — driven by near-total dependence on imported petroleum for power generation. Despite gasoline prices that are also the highest in the country, the per-mile cost of charging exceeds the per-mile cost of gasoline. Hawaii is the only state where this is structural rather than the product of a temporary gas-price spike. Through 2024 and 2025, the math consistently favored filling up. The Iran conflict has temporarily reversed that: with gas now above $5.50/gal, electricity is currently cheaper per mile at conflict-elevated prices — a reversal driven by the gas price spike, not by any improvement in Hawaii's electricity costs. At pre-conflict baseline prices, gasoline is still cheaper, and the structural case for electricity is likely years away.

In the news · Hawaii

Curated coverage of Hawaii's EV/PHEV cost, policy, and infrastructure story. External links open in a new tab.

West region comparison

State Electric ¢/mi Gas ¢/mi Cheaper Annual diff
Washington 4.2¢ 10.0¢ ⚡ Electric $701/yr
Nevada 4.2¢ 8.8¢ ⚡ Electric $549/yr
Oregon 4.4¢ 8.8¢ ⚡ Electric $519/yr
Idaho 3.7¢ 7.3¢ ⚡ Electric $432/yr
Montana 3.9¢ 7.2¢ ⚡ Electric $398/yr
Utah 3.9¢ 6.8¢ ⚡ Electric $342/yr
Wyoming 3.9¢ 6.5¢ ⚡ Electric $307/yr
California 9.2¢ 11.1¢ ⚡ Electric $228/yr
Colorado 5.0¢ 6.6¢ ⚡ Electric $196/yr
Alaska 7.7¢ 9.1¢ ⚡ Electric $170/yr
Hawaii 12.1¢ 11.6¢ ⛽ Gas $59/yr