At a 150 kW fast charger the Hyundai Ioniq 6 Long Range RWD takes on 693 miles of range per hour and the Nissan Ariya e-4ORCE 87 kWh 238. At a household outlet the same 14 cars span 3.6 to 5.5 miles an hour. One table, five chargers, every US-rated car.
Every car, at every charger
Two different pieces of arithmetic, deliberately kept apart. On AC the wall delivers a fixed power and the EPA’s kWh per 100 miles — measured at the wall, losses included — converts it straight into miles per hour, so the order is simply the efficiency ranking. On DC the car’s own charging curve is the limit: 70 per cent of its EPA range goes in during its measured 10-80 per cent time, and a station weaker than the car stretches that time in proportion, exactly as the per-car charging pages work it out. An asterisk marks a 350 kW figure that is no better than the 150 kW one, because the car reaches its own limit at the lower power.
| Car | 120 V (1.44 kW) | 7.7 kW | 50 kW | 150 kW | 350 kW | 10-80% |
|---|---|---|---|---|---|---|
| Hyundai Ioniq 6 Long Range RWD | 5.5 | 30 | 231 | 693 | 845 | 17 min |
| Kia EV6 84 kWh RWD | 4.9 | 26 | 199 | 598 | 788 | 17 min |
| Hyundai Ioniq 5 84 kWh RWD | 4.8 | 26 | 199 | 596 | 742 | 18 min |
| Tesla Model 3 Long Range AWD | 5.5 | 29 | 219 | 519 | 519* | 28 min |
| Tesla Model Y Long Range AWD | 5.2 | 28 | 218 | 509 | 509* | 27 min |
| BMW i4 eDrive40 | 5.1 | 27 | 205 | 499 | 499* | 28 min |
| Porsche Taycan (rear-wheel drive) | 3.9 | 21 | 166 | 499 | 606 | 19 min |
| Kia EV9 99.8 kWh AWD | 3.6 | 19 | 147 | 442 | 540 | 22 min |
| Volkswagen ID.4 Pro | 4.8 | 26 | 189 | 436 | 436* | 28 min |
| Toyota bZ4X AWD 73.1 kWh | 5.1 | 28 | 209 | 432 | 432* | 28 min |
| Ford Mustang Mach-E Extended Range RWD | 4.7 | 25 | 176 | 420 | 420* | 32 min |
| Volvo EX30 Single Motor Extended Range | 4.9 | 26 | 201 | 391 | 391* | 28 min |
| Ford Mustang Mach-E Standard Range RWD | 4.6 | 25 | 179 | 341 | 341* | 32 min |
| Nissan Ariya e-4ORCE 87 kWh | 3.9 | 21 | 156 | 238 | 238* | 48 min |
The Rivian R1T Dual Motor, Large pack has no measured 10-80 per cent time in our source and is omitted rather than estimated; on AC it adds 3.4 miles an hour at 120 V and 18 at 7.7 kW.
Where 350 kW actually helps
5 of the 14 cars add more miles per hour at 350 kW than at 150: Hyundai Ioniq 6 Long Range RWD, Kia EV6 84 kWh RWD, Hyundai Ioniq 5 84 kWh RWD, Porsche Taycan (rear-wheel drive), Kia EV9 99.8 kWh AWD. Every one of them runs an 800-volt pack, and the reason is worked through in do you need a 350 kW charger. For the rest, the 150 kW column is the ceiling; the Hyundai Ioniq 6 Long Range RWD leads at 350 kW with 845 miles an hour.
The 50 kW column is the one to read before a road trip through thin infrastructure. Every car here is held back by the station at 50 kW, and the spread narrows to 147–231 miles an hour because a weak charger flattens the differences between cars. How many stops that means over 500 miles is in the road-trip calculator.
At home, efficiency is the whole story
The 7.7 kW column runs from 18 miles an hour (Rivian R1T Dual Motor, Large pack) to 30 (Hyundai Ioniq 6 Long Range RWD), and the order is the site’s efficiency ranking because every car receives the same power. A 120 V outlet is that column divided by 5.3: 3.4 to 5.5 miles an hour, enough to replace an average day in a ten-hour night for every car here. The case for the larger wallbox is made in 7.7 kW against 11.5 kW; what a month of home charging costs, by car, is in EV charging cost per month.
Frequently asked questions
How many miles per hour does a fast charger add?
At 150 kW, between 238 (Nissan Ariya e-4ORCE 87 kWh) and 693 (Hyundai Ioniq 6 Long Range RWD) miles of EPA range per hour across the 14 US-rated cars with a measured 10-80 per cent time. The figure is an average over the 10-80 window, not a promise about the first ten minutes.
How many miles does Level 2 charging add per hour?
On a 7.7 kW wallbox, 18 to 30 miles an hour for these cars: 7.7 kW divided by each car’s EPA energy use per mile. An 11.5 kW circuit raises it in proportion only as far as the car’s onboard charger allows, which for most cars here is 11 kW.
Is a 350 kW charger faster than a 150 kW one?
For 5 of these 14 cars, yes — the 800-volt ones. For the others the car reaches its own 10-80 per cent time on a 150 kW station and a 350 kW post changes nothing except the price of the stall.
Why is a 50 kW charger so much slower?
Because at 50 kW the station, not the car, is the limit: moving 70 per cent of a 74 kWh pack at 50 kW takes 62 minutes regardless of what the car could accept. The spread between cars shrinks accordingly.
Sources
EPA combined range and energy use: fueleconomy.gov, model year credited on each car’s page. 10-80 per cent times, peak power and onboard charger ratings: EV Database, credited on each car’s page. Level 1 is 120 V × 12 A; the 7.7 kW wallbox and the 90 per cent AC charging efficiency are the standing assumptions on the methodology page. Figures are computed from unrounded inputs and rounded to the mile.