2018 head-to-head · Large Car
2018 Honda Accord vs Kia Optima
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2018 Honda Accord is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,409 a year to fuel (33 MPG), versus $1,500 for the 2018 Kia Optima (31 MPG). That's roughly $91 a year, or about $455 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
- Honda Accord
- Kia Optima
Side by side
| Honda Accord | Kia Optima | |
|---|---|---|
| $1,409 | Your annual fuel cost | $1,500 |
| 33 MPG | Combined efficiency | 31 MPG |
| 30 MPG | City | 28 MPG |
| 38 MPG | Highway | 37 MPG |
| 106 cu ft | Passenger volume | 105 cu ft |
| 17 cu ft | Cargo volume | 16 cu ft |
| 266 g/mi | Tailpipe CO₂ (g/mi) | 286 g/mi |
| 8/10 | EPA fuel economy score | 7/10 |
| 8/10 | EPA greenhouse gas score | 7/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 1.5L 4-cyl turbo | Engine / motor | 1.6L 4-cyl turbo |
| CVT | Transmission | 7-speed dual-clutch |
| FWD | Drivetrain | FWD |
✓ 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.
Honda Accord vs Kia Optima across model years
- Honda Accord
- Kia Optima
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 Honda Accord has more cargo space (17 vs. 16 cu ft).
Among 31 2018 large cars, the Honda Accord ranks 5th and the Kia Optima 8th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Honda Accord or the 2018 Kia Optima?
Measured by cost to drive, the Honda Accord. The Honda Accord is rated 33 MPG combined and the Kia Optima 31 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Honda Accord vs. the Kia Optima per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,409 for the Honda Accord and $1,500 for the Kia Optima.
Which has more cargo space?
The Honda Accord, with 17 cu ft of luggage volume versus 16 cu ft (EPA interior volume index).
Honda Accord vs Kia Optima in other years
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