Cost to Charge a BMW i5 in Hawaii

$49.97 for a full charge at 52.72¢/kWh — $15.24 per 100 miles, about $1,828 a year.

BMW i5 in Hawaii

$49.97 for a full charge

Per 100 miles: $15.24
Per mile: $0.15
Per year: $1,828
vs petrol / yr: -$194

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a BMW i5
Item	Energy	Cost
This charge	94.8 kWh	$49.97
Full charge (0–100%)	94.8 kWh	$49.97
Per 100 miles	28.9 kWh	$15.24
Per year (12,000 mi)	3468.0 kWh	$1,828
Same year on petrol (30 mpg)	—	$1,634
Difference	—	-$194

What charging actually costs here

Filling a BMW i5 from empty in Hawaii costs $49.97. The car draws 94.8 kWh from the wall for a full 328-mile charge, and Hawaii residential electricity averages 52.72¢ per kWh. That works out at $15.24 per 100 miles, or $0.15 a mile.

Hawaii is more expensive than average: 52.72¢ against a national mean of 19.42¢, which ranks it 51 of 51 for electricity price. The same car costs $12.43 to fill in Nevada and $49.97 in Hawaii — a 4.0× spread across the country for identical driving.

This is one of the few places where the sum does not favour electricity. At 52.72¢ per kWh, running the BMW i5 costs $15.24 per 100 miles while a 30 mpg petrol car costs $13.62 — so over 12,000 miles you would spend about $194 more on electricity. Home solar or an off-peak tariff changes that quickly, but the flat residential rate does not.

Similar EVs in Hawaii

Charging cost of comparable EVs in Hawaii
Vehicle	Per 100 mi	Full charge	Per year
BMW iX	28.6 kWh	$65.44	$1,809
Fiat 500e	29.2 kWh	$22.94	$1,847
Audi Q4 e-tron	29.4 kWh	$44.64	$1,860
Hyundai Ioniq 6	28 kWh	$46.65	$1,771
Subaru Solterra	28 kWh	$42.51	$1,771
Toyota bZ	28 kWh	$42.51	$1,771

The same car in nearby-priced states

Charging a BMW i5 in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Maine	29.59	$28.05	$1,026
Massachusetts	29.61	$28.07	$1,027
California	34.74	$32.93	$1,205

Frequently asked questions

How much does it cost to charge a BMW i5 in Hawaii?

$49.97 for a full charge from empty. The car needs 94.8 kWh at the wall and Hawaii residential electricity averages 52.72¢ per kWh.

How much does a BMW i5 cost per mile in Hawaii?

About $0.15 a mile, or $15.24 per 100 miles. Over 12,000 miles a year that is roughly $1,828 of electricity.

Is charging a BMW i5 cheaper than petrol in Hawaii?

Not at the flat residential rate. Electricity costs $15.24 per 100 miles here against $13.62 for a 30 mpg petrol car, so you would spend roughly $194 more a year. Hawaii has the kind of electricity prices where an off-peak tariff or solar makes the difference.

How long does a full charge last?

The EPA rates the BMW i5 at 328 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 28.9 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.