How much does it cost to charge a Hyundai Ioniq 5 at home in Hawaii?
$49.21 for a full charge
- Per 100 miles
- $15.61
- A month at 1,000 miles
- $156.05
- Per mile
- 15.6¢
- Gas at 30 mpg, same miles
- $149.33
2026 Hyundai Ioniq 5 SE RWD, EPA 29.6 kWh per 100 miles, at Hawaii’s average rate of 52.7¢ per kWh (EIA, June 2026). Filling the 84.0 kWh battery from empty takes about 93.3 kWh from the wall at 90% charging efficiency. How we calculate this
Electricity versus gasoline
| Hyundai Ioniq 5 | Gas car | Difference | |
|---|---|---|---|
| Per 100 miles | $15.61 | $14.93 | $-0.67 |
| A month (1,000 mi) | $156.05 | $149.33 | $-6.72 |
| A year (12,000 mi) | $1,872.61 | $1,792.00 | $-80.61 |
Home charging beats gas for this car as long as electricity costs less than 50.5¢ per kWh. Negative differences mean the gas car is cheaper. The 30 mpg comparison car is our assumption; see the methodology.
What it costs at other monthly mileages
| Miles a month | Energy | Electricity | Gas (30 mpg) |
|---|---|---|---|
| 500 | 148 kWh | $78.03 | $74.67 |
| 750 | 222 kWh | $117.04 | $112.00 |
| 1,000 | 296 kWh | $156.05 | $149.33 |
| 1,500 | 444 kWh | $234.08 | $224.00 |
| 2,000 | 592 kWh | $312.10 | $298.67 |
Charging in Hawaii compared with other states
Hawaii’s residential rate is the 1st most expensive of 51 states and DC, 34.4¢ above the US average of 18.3¢ (+187%). Hawaii’s rate is up 11.8¢ from June 2025 (41.0¢, +28.7%).
Ways to spend less
- Ask your utility about a time-of-use or EV rate and schedule charging for off-peak hours; the car or charger can do it automatically.
- Precondition the cabin while the car is still plugged in, so heating or cooling comes from the grid instead of the battery.
- Keep tires at the pressure on the door-jamb sticker; underinflated tires raise consumption.
- Drive 100 fewer miles a month: saves $15.61 at 52.7¢ per kWh.
Questions
How much does it cost to fully charge a Hyundai Ioniq 5 in Hawaii?
About $49.21. Filling the 84.0 kWh battery from empty takes about 93.3 kWh from the wall at 90% charging efficiency. at 52.7¢ per kWh.
How much does it cost to charge a Hyundai Ioniq 5 per month?
About $156.05 a month at 1,000 miles (52.7¢ per kWh), or $1,872.61 a year in Hawaii. At the EPA rating of 29.6 kWh per 100 miles, 1,000 miles take 296 kWh from the wall.
How much does it cost to charge a Hyundai Ioniq 5 per mile?
15.6¢ a mile, or $15.61 per 100 miles in Hawaii.
Is charging a Hyundai Ioniq 5 cheaper than gas?
Not at these prices in Hawaii: $15.61 per 100 miles against $14.93 for a 30 mpg car at $4.48 a gallon. Electricity would need to cost under 50.5¢ per kWh to break even.
How many kWh does it take to charge a Hyundai Ioniq 5?
Filling the 84.0 kWh battery from empty takes about 93.3 kWh from the wall at 90% charging efficiency. Most charging sessions top up part of the battery, so a typical night uses less.
How does charging in Hawaii compare with other states?
Hawaii’s residential rate is the 1st most expensive of 51 states and DC, 34.4¢ above the US average of 18.3¢ (+187%). Hawaii’s rate is up 11.8¢ from June 2025 (41.0¢, +28.7%).
Sources
- EPA rating carrier: 84.0 kWh RWD: 129/100/114 MPGe city/hwy/combined, 318 mi EPA
- EPA rating carrier: SE/SEL/Limited RWD EPA-est. 318 mi
- U.S. EPA and DOE, fueleconomy.gov (official ratings; verify here)
- AAA, national average price of regular gasoline, September 24, 2026
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: average price of electricity to ultimate customers, residential, June 2026 Figures transcribed from republications of this table on September 26, 2026; pending direct verification from the EIA API.
- Carrier page: June 2026 residential average price, citing EIA Electric Power Monthly Table 5.6.A
Usage assumptions (hours a day, season) are ours and listed on the methodology page. Found an error? Tell us.