EV vs Gas Cost Per Mile in Hawaii (2026)
At 44.3¢/kWh electricity and $4.62/gallon gas, EVs cost 11.66¢/mile vs 16.5¢/mile for a 28 MPG gas car — 29% less per mile. That's $581/year savings on 12,000 miles.
Cost Per Mile: EV vs Gas in Hawaii
| Vehicle Type | Fuel Cost | Efficiency | Cost Per Mile | 12,000 mi/yr |
|---|---|---|---|---|
| EV (home charging) | 44.3¢/kWh | 3.8 mi/kWh | 11.66¢ | $1399 |
| Gas car (28 MPG) | $4.62/gal | 28 MPG | 16.5¢ | $1980 |
EV assumes 3.8 mi/kWh (Tesla Model 3 / Equinox EV efficiency range), 12,000 miles/year, 100% home charging. Electricity rate: EIA 2025 residential average for Hawaii. Gas price: AAA 2024 state average.
Annual Fuel Cost in Hawaii: EV vs Gas
EV Cost Per Mile in Hawaii: What the Numbers Mean
Hawaii's residential electricity rate of 44.3¢/kWh translates to 11.66¢ per mile for home charging, assuming 3.8 miles per kWh. Higher electricity rates in Hawaii mean EV fuel costs more than in most states, though the per-mile advantage over gas still holds in most scenarios.
At $4.62/gallon (#{@state[:name]} average), a 28 MPG gas car costs 16.5¢ per mile. The per-mile gap between EV and gas is 4.84¢ — 29% cheaper for the EV. Over 12,000 miles per year, that's $581 saved.
Most Hawaii utilities offer time-of-use (TOU) rates for overnight EV charging that can reduce the home rate by 2–5¢/kWh. If you charge overnight, ask your utility — even small rate reductions compound over 12,000+ miles per year.
Hawaii vs National Average: Cost Per Mile
| Location | Electricity Rate | EV ¢/mile | Gas ¢/mile | EV Advantage |
|---|---|---|---|---|
| Hawaii | 44.3¢/kWh | 11.66¢ | 16.5¢ | 29% less |
| National Average | 16.1¢/kWh | 4.24¢ | 11.43¢ | 63% less |
Frequently Asked Questions
What is the EV cost per mile in Hawaii?
At Hawaii's residential electricity rate of 44.3¢/kWh, a typical EV (3.8 miles per kWh) costs 11.66¢ per mile to charge at home. Driving 12,000 miles per year costs $1399 in fuel.
How does Hawaii compare to the national average for EV cost per mile?
The national average EV home charging cost is 4.24¢/mile (at 16.1¢/kWh). Hawaii's rate of 44.3¢/kWh puts its EV cost at 11.66¢/mile — 7.42¢ above the national average. EVs still beat gas here, but by a smaller margin than low-rate states.
How much does an EV save per mile vs gas in Hawaii?
In Hawaii, a 28 MPG gas car at $4.62/gallon costs 16.5¢/mile. An EV costs 11.66¢/mile at home. The per-mile savings is 4.84¢ — 29% less per mile. Over 12,000 miles per year, that's $581 saved annually in fuel.
Does cost per mile include maintenance?
These figures cover fuel only. Adding maintenance, the EV advantage grows further. Gas cars average $1,200–$1,500/year in maintenance (oil changes, transmission, spark plugs). EVs average $400–$900/year. At 12,000 miles/year, total running costs in Hawaii: gas car approximately 26.5–28.5¢/mile all-in vs 15.7–18.7¢/mile for an EV.
EV Cost Per Mile in Other States
Data Sources
Electricity rate for Hawaii: U.S. Energy Information Administration (EIA) Electric Power Monthly, 2025 residential averages. Gas price: AAA 2024 state average. EV efficiency: 3.8 mi/kWh (Tesla Model 3 / Chevy Equinox EV range). Last updated: March 2026.