The Ioniq 6’s charge time is among the quickest here: 17 minutes from 10 to 80 per cent, plus one of the lowest running costs at about $4.78 per 100 miles — the cheapest of the 15 cars on this site with a US rating. A full charge at home runs to roughly $15.13.
How long it takes to charge
| Where | Power | Time | What that is |
|---|---|---|---|
| Home, Level 1 | 1.4 kW | ≈ 57 hours est | Empty to full on a 120 V household outlet at 12 A — suited to daily top-ups; a full charge can take days |
| Home, Level 2 | 7.7 kW | 10.7 hours | Empty to full, overnight |
| Home, Level 2 | 11.0 kW | 7.5 hours | Empty to full, overnight capped by the 11.0 kW onboard charger |
| Public DC, at its peak | 233 kW | 17 min | 10 to 80 per cent — the figure to compare cars on |
| Public DC station | 50 kW | ≈ 62 min est | 10 to 80 per cent, held back by the station |
| Public DC station | 150 kW | ≈ 21 min est | 10 to 80 per cent, held back by the station |
| Public DC station | 350 kW | ≈ 17 min | 10 to 80 per cent — the car reaches its own limit here, not the station |
What it costs to charge
| Charging at | Rate | Full charge | Per 100 miles |
|---|---|---|---|
| Home | $0.184/kWh | $15.13 | $4.78 |
| Public DC fast charging | $0.48/kWh | $35.52 | $12.48 |
| A petrol car, for comparison | $4.07/gal | — | $15.07 |
Assumptions, all editable in the running-cost calculator: $0.184/kWh at home (EIA US residential average) and $0.48/kWh on public DC, against petrol at $4.07 a gallon and 27 mpg. Charging is about 90 per cent efficient, so putting 74.0 kWh into this battery costs 82.2 kWh at the meter — 8.2 kWh that never reaches the pack. The rated consumption figures are measured at the wall already and need no such correction.
Over 13,500 miles a year — the US average — that is $645.84 of electricity charging at home, against $2,035.00 of petrol in the comparison car: a difference of $1,389.16 a year.
Joint fastest to charge, and second-cheapest to run
These usually pull against each other. Fast charging tends to come with big, heavy, thirsty packs; efficiency tends to come with modest hardware. The Ioniq 6 gets both by putting an 800-volt drivetrain into an unusually slippery saloon body.
The efficiency figure is the quiet one. At 26 kWh per 100 miles it costs about $646 a year in electricity over average US mileage, against roughly $2,035 of petrol for a comparable combustion car — and about $348 a year less than the Kia EV9 at the other end of this list.
The same platform, a different answer
The Ioniq 6 and the Ioniq 5 share an 800-volt platform, a motor and near-identical packs. The Ioniq 6 uses 26 kWh per 100 miles and the Ioniq 5 uses 30 — about $89 a year apart at average mileage, from the same mechanical parts in a different shape.
It is the clearest illustration on this site that aerodynamics, not battery size, is what makes an electric car cheap to run. The full ranking is on most efficient electric cars.
What you give up
Space and shape. The low roofline that buys the efficiency also costs rear headroom and boot access, and the Ioniq 6 carries a smaller pack — 74 kWh usable against the Ioniq 5’s 80 — so it goes slightly less far in absolute terms despite using less energy per mile.
It also keeps the 3.6 kW vehicle-to-load hardware, so nothing is lost there.
Miles of range per hour, at every charger
The tables above answer “how long does a full charge take”. The question most drivers actually have at a plug is different: how much range goes in per hour, and how long until the next 100 miles are on the clock. This table answers that for every kind of charger, from a household 120-volt outlet to a 350 kW station, using the same figures as the rest of the page — the EPA’s 26.0 kWh per 100 miles, which is measured at the wall, and the measured 17-minute 10-80 per cent time. Rated range is used throughout; in winter, or at motorway speed, every row shrinks by the same proportion.
| Charger | Power at the car | Miles per hour | Add 100 mi | Empty to full | What sets the rate |
|---|---|---|---|---|---|
| Household outlet, Level 1 (120 V, 12 A) | 1.4 kW | 6 mi/h | 18 h 3 min | 57 h 6 min | the EPA figure, measured at the wall |
| Home wallbox, Level 2 | 7.7 kW | 30 mi/h | 3 h 23 min | 10 h 41 min | the EPA figure, measured at the wall |
| Home wallbox, Level 2 | 11.0 kW | 42 mi/h | 2 h 22 min | 7 h 28 min | capped by the 11.0 kW onboard charger |
| Public DC station | 50 kW | 231 mi/h | 26 min | — | held back by the station (estimate) |
| Public DC station | 150 kW | 693 mi/h | 9 min | — | held back by the station (estimate) |
| Public DC station | 350 kW | 845 mi/h | 7 min | — | the car’s own 17-minute 10-80 curve is the limit |
A Level 1 outlet adds about 6 miles an hour — 55 miles in a ten-hour overnight stop, enough for a commute and not for much else. A 7.7 kW wallbox raises that to 30 miles an hour, so 100 miles takes 3 h 23 min and the car is full from empty in 10 h 41 min. On DC the useful figure is 693 miles an hour at a 150 kW post, rising to 845 at 350 kW — 100 miles in 9 min. The 50 kW row is the one to remember on a road trip: the station, not the car, sets the pace, and 100 miles takes 26 min.
The per-hour figures do not change with your electricity price, but the cost of every hour does: the residential rate runs from 13.11 cents a kWh in Nevada to 52.72 in Hawaii (EIA, June 2026). We publish the arithmetic for this car in every state — Vermont, Virginia, Washington, Washington DC — and a 50-state table ranked cheapest first.
Where these numbers will mislead you
Cold. The seventeen-minute figure assumes a pre-conditioned pack, and this car does not warm itself unless you ask it to.
Efficiency is a cycle figure. The 26 kWh per 100 miles comes from the EPA test. Your own consumption at 75 mph in February will be worse, for this car and every other one here.
Frequently asked questions
How long does it take to charge a Hyundai Ioniq 6?
About 17 minutes from 10 to 80 per cent on a fast enough DC station, and roughly 7.5 hours from empty on an 11 kW home wallbox.
How much does it cost to charge an Ioniq 6?
About $15.13 for a full charge at the US average residential rate, or roughly $4.78 per 100 miles — the lowest figure of any car covered here. Over 13,500 miles a year that is around $646.
Is the Ioniq 6 cheaper to run than the Ioniq 5?
Yes, by about $89 a year at average US mileage, from identical running gear. The difference is entirely the body shape.
How many kWh does it take to fully charge a Hyundai Ioniq 6?
The pack holds 74 kWh usable, but you pay for what comes out of the wall, and AC charging is roughly 90 per cent efficient — so a full charge draws about 82 kWh. That is the figure your electricity bill sees, and it is why the full-charge cost above is higher than capacity multiplied by tariff would suggest.
The same arithmetic across every car on this site: how many kWh a full charge really takes, 7.7 kW against 11.5 kW at home, and what charging costs per month.
Sources
Figures are credited individually on the Hyundai Ioniq 6 Long Range RWD page. Tariff assumptions are on the methodology page.