2026 head-to-head · Compact Car
2026 Lexus IS vs Toyota Mirai
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
RWD · Electric motor (134 kW) · CVT · 72 MPGe
The 2026 Lexus IS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and $36.00/kg hydrogen, it costs about $2,693 a year to fuel (22 MPG), versus $7,500 for the 2026 Toyota Mirai (72 MPGe). That's roughly $4,807 a year, or about $24,034 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Lexus IS
- Toyota Mirai
Side by side
| Lexus IS | Toyota Mirai | |
|---|---|---|
| $2,693 | Your annual fuel cost | $7,500 |
| 22 MPG | Combined efficiency | 72 MPGe |
| 19 MPG | City | 74 MPGe |
| 27 MPG | Highway | 70 MPGe |
| — | Driving range | 402 mi |
| 90 cu ft | Passenger volume | 93 cu ft |
| 11 cu ft | Cargo volume | 10 cu ft |
| 403 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 4/10 | EPA fuel economy score | 9/10 |
| 4/10 | EPA greenhouse gas score | 10/10 |
| Gas | Powertrain | Fuel cell |
| Premium gasoline | Fuel | Hydrogen |
| 3.5L 6-cyl | Engine / motor | Electric motor (134 kW) |
| 8-speed automatic | Transmission | CVT |
| RWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Lexus IS vs Toyota Mirai across model years
- Lexus IS
- Toyota Mirai
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Toyota Mirai has more passenger space (93 vs. 90 cu ft); the Lexus IS has more cargo space (11 vs. 10 cu ft).
Among 21 2026 compact cars, the Lexus IS ranks 19th and the Toyota Mirai 21st for lowest fuel cost.
The powertrains differ: the Lexus IS is a conventional gas model, while the Toyota Mirai is a hydrogen fuel-cell vehicle.
Frequently asked questions
Which is more fuel-efficient, the 2026 Lexus IS or the 2026 Toyota Mirai?
Measured by cost to drive, the Lexus IS. The Lexus IS is rated 22 MPG combined and the Toyota Mirai 72 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Lexus IS vs. the Toyota Mirai per year?
At 15,000 miles a year with $3.95/gal premium gas and $36.00/kg hydrogen, about $2,693 for the Lexus IS and $7,500 for the Toyota Mirai.
Which has more cargo space?
The Lexus IS, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
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