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2018 Kia Optima EX (JF)
Shown: 2018 Kia Optima EX (JF). Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2020
  • Gas
  • Hybrid
  • Plug-in hybrid
  • Large cars

2016-2020 Kia Optima MPG & Fuel Cost

5 model years · 24–42 MPG combined

31 MPG
Combined
27 MPG
City
37 MPG
Highway
Annual fuel cost · Optima 1.6L 4-cyl turbo FWD
$2,140

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 8 of 10 large car configurations, MY2020. Ranked against all rated configurations, not sales-weighted.

2016-2020 Kia Optima at a glance

The 2016-2020 Kia Optima covers 5 model years in the EPA database (32 configurations in all), rated 24–42 MPG combined. The newest model year, 2020, costs about $1,560 a year to fuel for its most efficient version, the Hybrid 2.0L 4-cyl FWD (42 MPG), at regular gasoline $4.36/gal (U.S. average, Sep 2026). Powertrains over the years: gas, hybrid and plug-in hybrid. EPA changed the ratings in 2017, 2018, 2019 and 2020. The best combined rating in the generation, 42 MPG, was reached in 2017, 2018 and 2020.

2016-2020 Kia Optima by model year

2016-2020 Kia Optima: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2020 Gas, Hybrid, Plug-in hybrid 24–42 MPG $1,200–$2,700 Ratings changed
2019 Gas, Hybrid, Plug-in hybrid 24–41 MPG $1,220–$2,700 Ratings changed
2018 Gas, Hybrid, Plug-in hybrid 25–42 MPG $1,220–$2,620 Ratings changed
2017 Gas, Hybrid, Plug-in hybrid 25–42 MPG $1,220–$2,620 Ratings changed
2016 Gas, Hybrid 25–37 MPG $1,780–$2,620 First year

What the 2020 Optima 1.6L 4-cyl turbo FWD costs to drive

Per month

$178

$2,140 a year ÷ 12

Per 25 miles

$3.57

Per 100 miles

$14.27

Five years

$10,700

5 × the yearly cost, prices held at today's level

vs the large car median

$1,180less a year

Class median $3,320 a year, MY2020

Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).

2020 Kia Optima MPG

Versus 2019: The most efficient configuration moves from 41 to 42 MPG, up 1. Its annual cost goes from $1,580 to $1,560, $20 less.

Gas · 1.6L, 2.0L, 2.4L
Combined
24–31 MPG
Per year
$2,140–$2,700
See gas configurations
Hybrid · 2.0L
Combined
42 MPG
Per year
$1,560
See hybrid configurations
Plug-in hybrid · 2.0L
Gas-only combined
41 MPG
Per year
$1,200

On electricity 101 MPGe, with 28 miles of electric range.

See plug-in hybrid configurations

Gas configurations (4)

2020 Kia Optima gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Optima 1.6L 4-cyl turbo (Most efficient) 1.6L 4-cyl turbo FWD 27 37 31 $2,140
FE 2.4L 4-cyl FWD 25 35 29 $2,270
Optima 2.4L 4-cyl 2.4L 4-cyl FWD 24 32 27 $2,400
Optima 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 21 30 24 $2,700

Hybrid configurations (1)

2020 Kia Optima hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Hybrid (Most efficient) 2.0L 4-cyl FWD 40 45 42 $1,560

Plug-in hybrid configurations (1)

2020 Kia Optima plug-in hybrid configurations: EPA ratings and annual cost
TrimDriveGas MPGElectric MPGeElectric range$/yr
Plug-in Hybrid (Most efficient) FWD 41 101 28 mi $1,200

Cost assumes EPA's utility factor: 57% of miles are driven on electricity (residential electricity 18.3¢/kWh (U.S. average, Jul 2026)) and the rest on gasoline (regular gasoline $4.36/gal (U.S. average, Sep 2026)).

2019 Kia Optima MPG

24–41 MPG · $1,220–$2,700/yr

Versus 2018: The most efficient configuration moves from 42 to 41 MPG, down 1. Its annual cost goes from $1,560 to $1,580, $20 more.

Gas · 1.6L, 2.0L, 2.4L
Combined
24–31 MPG
Per year
$2,140–$2,700
See gas configurations
Hybrid · 2.0L
Combined
41 MPG
Per year
$1,580
See hybrid configurations
Plug-in hybrid · 2.0L
Gas-only combined
40 MPG
Per year
$1,220

On electricity 103 MPGe, with 29 miles of electric range.

See plug-in hybrid configurations

Gas configurations (4)

2019 Kia Optima gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Optima 1.6L 4-cyl turbo (Most efficient) 1.6L 4-cyl turbo FWD 27 37 31 $2,140
FE 2.4L 4-cyl FWD 25 35 29 $2,270
Optima 2.4L 4-cyl 2.4L 4-cyl FWD 24 33 27 $2,380
Optima 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 21 30 24 $2,700

Hybrid configurations (1)

2019 Kia Optima hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Hybrid (Most efficient) 2.0L 4-cyl FWD 39 45 41 $1,580

Plug-in hybrid configurations (1)

2019 Kia Optima plug-in hybrid configurations: EPA ratings and annual cost
TrimDriveGas MPGElectric MPGeElectric range$/yr
Plug-in Hybrid (Most efficient) FWD 40 103 29 mi $1,220

Cost assumes EPA's utility factor: 57% of miles are driven on electricity (residential electricity 18.3¢/kWh (U.S. average, Jul 2026)) and the rest on gasoline (regular gasoline $4.36/gal (U.S. average, Sep 2026)).

2018 Kia Optima MPG

25–42 MPG · $1,220–$2,620/yr

Versus 2017: The most efficient configuration stays at 42 MPG. Its annual cost stays at $1,560.

Gas · 1.6L, 2.0L, 2.4L
Combined
25–31 MPG
Per year
$2,080–$2,620
See gas configurations
Hybrid · 2.0L
Combined
42 MPG
Per year
$1,560
See hybrid configurations
Plug-in hybrid · 2.0L
Gas-only combined
40 MPG
Per year
$1,220

On electricity 103 MPGe, with 29 miles of electric range.

See plug-in hybrid configurations

Gas configurations (5)

2018 Kia Optima gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Optima 1.6L 4-cyl turbo (Most efficient) 1.6L 4-cyl turbo FWD 28 37 31 $2,080
FE 2.4L 4-cyl FWD 25 36 29 $2,250
Optima 2.4L 4-cyl 2.4L 4-cyl FWD 24 34 28 $2,340
S 2.4L 4-cyl FWD 23 32 26 $2,480
Optima 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 22 31 25 $2,620

Hybrid configurations (1)

2018 Kia Optima hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Hybrid (Most efficient) 2.0L 4-cyl FWD 39 46 42 $1,560

Plug-in hybrid configurations (1)

2018 Kia Optima plug-in hybrid configurations: EPA ratings and annual cost
TrimDriveGas MPGElectric MPGeElectric range$/yr
Plug-in Hybrid (Most efficient) FWD 40 103 29 mi $1,220

Cost assumes EPA's utility factor: 57% of miles are driven on electricity (residential electricity 18.3¢/kWh (U.S. average, Jul 2026)) and the rest on gasoline (regular gasoline $4.36/gal (U.S. average, Sep 2026)).

2017 Kia Optima MPG

25–42 MPG · $1,220–$2,620/yr

Versus 2016: The most efficient configuration moves from 37 to 42 MPG, up 5. Its annual cost goes from $1,780 to $1,560, $220 less.

Gas · 1.6L, 2.0L, 2.4L
Combined
25–31 MPG
Per year
$2,080–$2,620
See gas configurations
Hybrid · 2.0L
Combined
42 MPG
Per year
$1,560
See hybrid configurations
Plug-in hybrid · 2.0L
Gas-only combined
40 MPG
Per year
$1,220

On electricity 103 MPGe, with 29 miles of electric range.

See plug-in hybrid configurations

Gas configurations (4)

2017 Kia Optima gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Optima 1.6L 4-cyl turbo (Most efficient) 1.6L 4-cyl turbo FWD 28 37 31 $2,080
FE 2.4L 4-cyl FWD 25 36 29 $2,250
Optima 2.4L 4-cyl 2.4L 4-cyl FWD 24 34 28 $2,340
Optima 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 22 31 25 $2,620

Hybrid configurations (1)

2017 Kia Optima hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Hybrid (Most efficient) 2.0L 4-cyl FWD 39 46 42 $1,560

Plug-in hybrid configurations (1)

2017 Kia Optima plug-in hybrid configurations: EPA ratings and annual cost
TrimDriveGas MPGElectric MPGeElectric range$/yr
Plug-in Hybrid (Most efficient) FWD 40 103 29 mi $1,220

Cost assumes EPA's utility factor: 57% of miles are driven on electricity (residential electricity 18.3¢/kWh (U.S. average, Jul 2026)) and the rest on gasoline (regular gasoline $4.36/gal (U.S. average, Sep 2026)).

2016 Kia Optima MPG

25–37 MPG · $1,780–$2,620/yr
Gas · 1.6L, 2.0L, 2.4L
Combined
25–31 MPG
Per year
$2,080–$2,620
See gas configurations
Hybrid · 2.4L
Combined
36–37 MPG
Per year
$1,780–$1,820
See hybrid configurations

Gas configurations (5)

2016 Kia Optima gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Optima 1.6L 4-cyl turbo (Most efficient) 1.6L 4-cyl turbo FWD 28 37 31 $2,080
FE 2.4L 4-cyl 2.4L 4-cyl FWD 25 36 29 $2,240
Optima 2.4L 4-cyl 2.4L 4-cyl FWD 24 34 28 $2,340
FE 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 22 31 25 $2,580
Optima 2.0L 4-cyl turbo 2.0L 4-cyl turbo FWD 22 31 25 $2,620

Hybrid configurations (2)

2016 Kia Optima hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Hybrid (Most efficient) 2.4L 4-cyl FWD 35 38 37 $1,780
Hybrid EX 2.4L 4-cyl FWD 35 38 36 $1,820

Fuel cost by state

Yearly cost of the Optima 1.6L 4-cyl turbo FWD: $2,910 in California and $1,870 in Texas, a $1,040 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2020 large car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · EIA residential electricity, U.S. average, Jul 2026 (18.3¢/kWh) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2016-2020 Kia Optima get?

EPA rates the 2016-2020 Kia Optima at 24–42 MPG combined across 32 configurations and 5 model years. The most efficient version, the 2020 Hybrid 2.0L 4-cyl FWD, is rated 42 MPG (40 city, 45 highway). By powertrain: Gas: 24–31 MPG; Hybrid: 36–42 MPG; Plug-in hybrid: 40–41 MPG.

Which years had the best MPG in the 2016-2020 Kia Optima?

The Hybrid 2.0L 4-cyl FWD reached the generation's best combined rating, 42 MPG, in 2017, 2018 and 2020. The lowest top rating, 37 MPG, was in 2016.

Did EPA ratings change during the 2016-2020 Kia Optima?

Yes. Ratings changed in 2017, 2018, 2019 and 2020.

How does the 2016-2020 Kia Optima compare with the previous generation?

The previous generation (2011-2015 Kia Optima) is rated 24–37 MPG combined and costs $1,780–$2,770 a year to fuel; the 2016-2020 model is rated 24–42 MPG and costs $1,200–$2,700 a year.

How much does it cost to fuel a 2020 Kia Optima per year?

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Optima 1.6L 4-cyl turbo FWD costs about $2,140 a year. Across all 6 configurations the cost runs $1,200–$2,700 a year. That is a $1,500 difference between the cheapest and the costliest configuration.

How does the 2020 Kia Optima compare with other large car configurations?

The Optima 1.6L 4-cyl turbo FWD costs about $2,140 a year to fuel, $1,180 less than the class median of $3,320, and less than 8 of 10 large car configurations. The comparison covers all 115 rated large car configurations for MY2020, not weighted by sales.

Is the 2020 Kia Optima hybrid cheaper to fuel than the gas version?

Yes. The best hybrid (Hybrid 2.0L 4-cyl FWD) is rated 42 MPG against 31 MPG for the best gas version (Optima 1.6L 4-cyl turbo FWD), 11 MPG more. At regular gasoline $4.36/gal (U.S. average, Sep 2026) that is $1,560 versus $2,140 a year, a saving of $580.

How far does the 2020 Kia Optima plug-in hybrid go on electricity?

EPA rates the electric range at 28 miles, with a total range of 630 miles when the gasoline engine helps. Once the battery is used, the car runs as a hybrid at 41 MPG. The Plug-in Hybrid 2.0L 4-cyl FWD costs about $1,200 a year, assuming EPA's utility factor of 57% of miles on electricity, at regular gasoline $4.36/gal (U.S. average, Sep 2026) + residential electricity 18.3¢/kWh (U.S. average, Jul 2026).

Is the 2020 Kia Optima different from the 2019 model?

The most efficient configuration moves from 41 to 42 MPG, up 1. Its annual cost goes from $1,580 to $1,560, $20 less. EPA lists 6 configurations for 2020 against 6 configurations for 2019. See the 2019 Kia Optima for that year.