The most efficient sedan here costs about $13.32 to charge at home.
Pre-filled with the Hyundai Ioniq 6 Long Range RWD (77.4 kWh): 74 kWh usable battery, 3.92 mi/kWh. Change any number to match your car.
The Hyundai Ioniq 6 Long Range is the most efficient electric sedan in this group, and one of the most efficient EVs ever sold. Its slippery 0.21 drag coefficient — the lowest of any production car — lets its 74 kWh usable battery deliver an EPA-estimated 342 miles, more range than the Tesla Model 3 from a smaller battery. A full home charge at the US average rate costs about $13.32, or about 4 cents per mile. If you want the lowest possible charging bill, this is the car.
The Ioniq 6 looks like nothing else on the road, with its streamlined fastback shape and pixel lighting, but the shape is not a styling exercise — it is the reason the car is so efficient. Air resistance is the biggest enemy of highway range, and the Ioniq 6 simply slips through the air better than any rival. It shares the Ioniq 5's 800-volt architecture, so it also charges from 10% to 80% in about 18 minutes. For 2025 Hyundai added a native NACS port for direct Supercharger access. Note that Hyundai ended the standard Ioniq 6 sedan after the 2025 model year, so remaining cars are dealer stock — often with discounts.
| Specification | Hyundai Ioniq 6 Long Range RWD (77.4 kWh) |
|---|---|
| Battery (usable) | 74 kWh (usable) |
| EPA-estimated range | 342 miles |
| Efficiency | 3.92 miles per kWh (132 MPGe (EPA)) |
| 10–80% DC fast charge | ~18 minutes |
| Max DC fast-charge power | 240 kW |
| Charge port | NACS (2025+) |
| Starting MSRP | From $42,700 (approx. — verify with dealer) |
Efficiency is the number that matters most for your wallet. At 3.92 miles per kWh, every kilowatt-hour of electricity takes you 3.92 miles. A more efficient car needs fewer kilowatt-hours for the same trip, so it costs less to charge even with the same battery size.
The table below uses the US average home rate of $0.18 per kWh (EIA, August 2026) and the national public fast-charging average of $0.48 per kWh (estimate). The "mixed" column assumes 80% home charging and 20% public charging, which matches how most owners actually charge.
| Annual mileage | Home only | Public only | Mixed (80/20) |
|---|---|---|---|
| 8,000 miles | $367.35 | $979.59 | $489.80 |
| 12,000 miles | $551.02 | $1,469.39 | $734.69 |
| 15,000 miles | $688.78 | $1,836.73 | $918.37 |
Home charging an Ioniq 6 is the cheapest motoring in this group. Its 11 kW onboard charger refills the battery in about 7 hours on a Level 2 wall connector, and because the car is so efficient, every kilowatt-hour takes you further. Driving 1,000 miles a month at the US average home rate of $0.18 per kWh costs about $46; in Washington ($0.146) that is about $37, in Texas ($0.159) about $41, and in Florida ($0.150) about $38. Even in California ($0.298) the same month costs only about $76. Over a year of driving, the Ioniq 6's efficiency saves roughly $50 to $100 versus the average EV in this group — small per month, but it adds up over the life of the car.
On a DC fast charger the Ioniq 6 is one of the quickest cars on the road. Its 800-volt system accepts up to about 240 kW and completes a 10–80% charge in roughly 18 minutes on a 350 kW charger, adding well over 200 miles of range in the process. That is faster than any Tesla on this site. At the national average public rate of about $0.48 per kWh, a full charge costs around $36, and a 10–80% road-trip stop costs about $25. With the native NACS port, Superchargers are available too, though the car charges more slowly there. Even on public charging, the Ioniq 6's efficiency keeps costs low — a road trip in this car is cheaper than in any other EV here.
The closest gas rival is Hyundai's own Sonata Hybrid, an exceptionally efficient sedan at 47 mpg combined. Even against that benchmark, the Ioniq 6 wins. Over 60,000 miles in five years the Sonata burns about 1,277 gallons, costing roughly $5,235 at $4.10 a gallon. The Ioniq 6 uses about 15,300 kWh for the same distance, costing around $3,670 on a typical 80% home / 20% public mix. The five-year fuel saving is about $1,565 — and the Ioniq 6 is quicker, quieter and needs far less maintenance. Against any non-hybrid gas sedan the saving is two to three times larger.
| 5 years / 60,000 miles | Hyundai Ioniq 6 | Hyundai Sonata Hybrid (gas) |
|---|---|---|
| Energy used | 15,306 kWh | 1,277 gallons |
| Fuel cost (5 years) | $3,673.47 | $5,234.04 |
| You save with the Hyundai Ioniq 6 | $1,560.57 over 5 years | |
EV figure uses a typical 80% home / 20% public mix at the US average home rate ($0.18/kWh) and the $0.48/kWh public average. Gas figure uses 47 mpg combined and $4.10 per gallon (AAA, November 2026). Fuel costs only — purchase price, insurance and maintenance are not included.
Electricity prices vary enormously by state. The table below shows what a full 0–100% home charge of the Hyundai Ioniq 6 costs in the ten biggest EV states, at each state's average residential rate (EIA, August 2026).
| State | Rate ($/kWh) | Full home charge |
|---|---|---|
| California | $0.297 | $22.02 |
| Texas | $0.159 | $11.77 |
| Florida | $0.150 | $11.09 |
| Washington | $0.146 | $10.83 |
| New York | $0.286 | $21.20 |
| Arizona | $0.150 | $11.14 |
| Colorado | $0.172 | $12.71 |
| Oregon | $0.159 | $11.78 |
| New Jersey | $0.246 | $18.21 |
| Georgia | $0.159 | $11.77 |
| US average | $0.180 | $13.32 |
A full 0–100% home charge of the Hyundai Ioniq 6 Long Range RWD (77.4 kWh) costs about $13.32 at the US average residential rate of $0.18 per kWh (EIA, August 2026). At a public DC fast charger, the same charge costs about $35.52 at the national average of $0.48 per kWh.
About $0.046 per mile on home charging alone, or about $0.061 per mile on a typical mix of 80% home and 20% public charging. Driving 1,000 miles a month costs about $61.22 on that mix, or about $734.69 a year for 12,000 miles.
On a DC fast charger, the Hyundai Ioniq 6 goes from 10% to 80% in ~18 minutes at up to 240 kW. At home on a Level 2 charger, a full charge takes roughly 7 to 10 hours overnight, depending on your charger's power.
Yes — for almost every EV owner. Home electricity averages about $0.18 per kWh in the US, while public fast charging averages about $0.48 per kWh. A home Level 2 charger typically costs $500 to $1,500 installed (before any utility rebates), and most owners recover that cost in one to two years of fuel savings.
Among large EV states, Washington is cheapest at about $0.146 per kWh, followed by Florida at $0.150 and Texas at $0.159. California is the most expensive large state at about $0.298 per kWh. Your state can change your monthly charging bill by $40 or more.
Yes, slightly. The Ioniq 6 Long Range is rated at 132 MPGe combined, or about 3.92 miles per kWh, versus about 3.85 miles per kWh for the Model 3 Long Range. It also goes further on a charge — 342 miles versus 341 — from a smaller 74 kWh usable battery, thanks to its 0.21 drag coefficient. In real-world driving the two are very close, and the Model 3 has the better charging network, but on pure efficiency the Ioniq 6 wins.
Estimates only. Battery capacity is usable capacity (usable); Tesla does not publish usable capacity, so Tesla figures are widely reported estimates. Electricity rates are statewide averages from the U.S. Energy Information Administration (August 2026); your utility, rate plan, time of use, taxes and fees will change your actual bill. Public charging at $0.48/kWh is a national average estimate. EPA range and efficiency are estimates for the Long Range RWD (77.4 kWh) trim; real-world figures vary with speed, temperature, terrain and driving style. MSRP is approximate — verify with the dealer. Rates updated November 2026. Not financial advice.