Cost to Charge a Hyundai Ioniq 9
Updated September 2026 · U.S. average rates
The short answer: at the national average rate, a full home charge of the Hyundai Ioniq 9 (110 kWh usable, ~335 miles of range) costs about $20.66 — 6.5¢ per mile, or $64.75 per 1,000 miles. The same charge at a public DC fast charger runs roughly $47.30. Versus a 32-mpg gas car, home charging saves about $33.69 per 1,000 miles.
Living with a Hyundai Ioniq 9: the cost story
The Ioniq 9 stretches the 800-volt E-GMP platform under a three-row family flagship, pairing one of Hyundai's largest packs with the charging speed that makes big batteries livable on trips.
Its aero is remarkably good for the size, so consumption undercuts the traditional big-SUV crowd; against the Kia EV9 it's a coin flip on cost and a styling decision everywhere else.
Cheapest & most expensive states for the Hyundai Ioniq 9
Cheapest
- North Dakota$13.69 full · 4.3¢/mi
- Idaho$14.18 full · 4.4¢/mi
- Utah$14.30 full · 4.5¢/mi
- Wyoming$14.42 full · 4.5¢/mi
- Louisiana$14.79 full · 4.6¢/mi
Most expensive
- Hawaii$51.46 full · 16.1¢/mi
- Connecticut$39.48 full · 12.4¢/mi
- California$38.87 full · 12.2¢/mi
- Massachusetts$38.13 full · 12.0¢/mi
- Rhode Island$37.16 full · 11.6¢/mi
Hyundai Ioniq 9 charging speed & home charger
Cost does not depend on speed — a kWh is a kWh — but time does. These estimates use the Hyundai Ioniq 9's onboard AC limit (11 kW) and its typical DC fast-charging peak (~235 kW); real sessions taper as the battery fills.
Home charger sizing: the Hyundai Ioniq 9 tops out at 11 kW on AC, so a 48-amp charger on a 60-amp circuit reaches its limit — a bigger unit adds nothing. Overnight (8 hours) on Level 2 restores about 230 miles, more than most daily driving. See Level 1 vs Level 2 and how many kWh it takes to charge an EV.
Run it for your state
Using Texas's average residential rate (15.6¢/kWh) · national average 16.9¢ · includes ~10% AC charging losses. Rates vary by utility and plan — your bill is the source of truth.