MPG Atlas

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Porsche 718 MPG

EPA fuel economy for 91 Porsche 718 trims sold from 2020 to 2025. Best ever: 24 MPG (2025 718 Boxster). Latest model year 2025: 16 to 24 MPG combined across 14 trims.

24best combined MPG (2025)
21 / 27city / highway of the best trim
16lowest combined MPG (2025)
6model years rated
$3,230a year to fuel, cheapest 2025 trim at EPA prices

Porsche 718 fuel cost calculator

Enter what you pay for fuel and how far you drive in a year. The starting prices are the ones the EPA uses for its own yearly fuel-cost estimates. Every cost on this page updates as you type.

At $5.16 a gallon for premium and 15,000 miles a year, the cheapest 2025 Porsche 718 to fuel is the 718 Boxster, 2.0 L, 4 cyl (24 MPG) at $3,230 a year. The 718 Spyder RS, 4.0 L, 6 cyl (16 MPG) costs $4,840, so the thriftier trim saves $1,610 a year and $8,050 over five years.

2025 trimEngineTransmissionDriveFuelCombCost/yrvs cheapest
718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium24$3,230cheapest
718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium24$3,230cheapest
718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium22$3,520+$290
718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium22$3,520+$290
718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium22$3,520+$290
718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium22$3,520+$290
718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium21$3,690+$460
718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium21$3,690+$460
718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium21$3,690+$460
718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium21$3,690+$460
718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium19$4,070+$850
718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium19$4,070+$850
718 GT4 RS4.0 L, 6 cylAuto (AM-S7)RWDPremium16$4,840+$1,610
718 Spyder RS4.0 L, 6 cylAuto (AM-S7)RWDPremium16$4,840+$1,610

Cost per year is miles per year divided by the EPA combined rating, times your fuel price; electric vehicles use the EPA's kWh per 100 miles instead. Rounded to the nearest $10. Your prices are kept in this browser only.

Porsche 718 MPG by year

YearBest combinedCityHwyBest trim that yearTrims
2025242127718 Boxster, 2.0 L, 4 cyl, Auto (AM-S7)14
2024242127718 Boxster, 2.0 L, 4 cyl, Auto (AM-S7)14
2023242127718 Boxster, 2.0 L, 4 cyl, Auto (AM-S7)21
2022242127718 Boxster, 2.0 L, 4 cyl, Auto (AM-S7)20
2021242127718 Boxster, 2.0 L, 4 cyl, Auto (AM-S7)20
2020191623718 Cayman GT4, 4.0 L, 6 cyl, Manual 6-spd2

Every Porsche 718 trim

YearTrimEngineTransmissionDriveFuelCityHwyCombCO2 g/miFuel cost/yr
2025718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2025718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2025718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2025718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2025718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2025718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2025718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2025718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2025718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2025718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2025718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2025718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2025718 GT4 RS4.0 L, 6 cylAuto (AM-S7)RWDPremium151916544$4,840
2025718 Spyder RS4.0 L, 6 cylAuto (AM-S7)RWDPremium141916551$4,840
2024718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2024718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2024718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2024718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2024718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2024718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2024718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2024718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2024718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2024718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2024718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2024718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2024718 GT4 RS4.0 L, 6 cylAuto (AM-S7)RWDPremium151916544$4,840
2024718 Spyder RS4.0 L, 6 cylAuto (AM-S7)RWDPremium141916551$4,840
2023718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2023718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2023718 Boxster T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2023718 Cayman T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2023718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2023718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2023718 Boxster T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2023718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium202522409$3,520
2023718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2023718 Cayman T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2023718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2023718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2023718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2023718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2023718 Cayman GT44.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2023718 Spyder4.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2023718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2023718 Cayman GT44.0 L, 6 cylManual 6-spdRWDPremium172319462$4,070
2023718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2023718 Spyder4.0 L, 6 cylManual 6-spdRWDPremium172319462$4,070
2023718 GT4 RS4.0 L, 6 cylAuto (AM-S7)RWDPremium151916544$4,840
2022718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2022718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2022718 Boxster T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2022718 Cayman T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2022718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2022718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2022718 Boxster T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2022718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2022718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2022718 Cayman T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2022718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2022718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2022718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2022718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2022718 Cayman GT44.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2022718 Spyder4.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2022718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2022718 Cayman GT44.0 L, 6 cylManual 6-spdRWDPremium172319460$4,070
2022718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2022718 Spyder4.0 L, 6 cylManual 6-spdRWDPremium172319460$4,070
2021718 Boxster2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2021718 Cayman2.0 L, 4 cylAuto (AM-S7)RWDPremium212724375$3,230
2021718 Boxster T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2021718 Cayman T2.0 L, 4 cylAuto (AM-S7)RWDPremium212723380$3,370
2021718 Boxster2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2021718 Boxster S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2021718 Boxster T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2021718 Cayman2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2021718 Cayman S2.5 L, 4 cylAuto (AM-S7)RWDPremium192522410$3,520
2021718 Cayman T2.0 L, 4 cylManual 6-spdRWDPremium202622394$3,520
2021718 Boxster GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2021718 Boxster S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2021718 Cayman GTS4.0 L, 6 cylAuto (AM-S7)RWDPremium192421418$3,690
2021718 Cayman S2.5 L, 4 cylManual 6-spdRWDPremium192421423$3,690
2021718 Cayman GT44.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2021718 Spyder4.0 L, 6 cylAuto (AM-S7)RWDPremium182420436$3,870
2021718 Boxster GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2021718 Cayman GT44.0 L, 6 cylManual 6-spdRWDPremium172319460$4,070
2021718 Cayman GTS4.0 L, 6 cylManual 6-spdRWDPremium172419458$4,070
2021718 Spyder4.0 L, 6 cylManual 6-spdRWDPremium172319460$4,070
2020718 Cayman GT44.0 L, 6 cylManual 6-spdRWDPremium162319473$4,070
2020718 Spyder4.0 L, 6 cylManual 6-spdRWDPremium162319473$4,070

CO2 is tailpipe grams per mile from the EPA test. Fuel cost per year uses the prices and miles in the calculator above (the EPA's own prices and 15,000 miles a year until you change them); blank when the fuel has no price here (hydrogen, natural gas).

Compare with other 2025 Two Seaters

VehicleCombinedCityHwy
2025 Bugatti Rimac Nevera535254
2025 Mazda MX-5292634
2025 BMW Z4 sDrive30i282533
2025 Toyota GR Supra272531
2025 Nissan Z221928
2025 Lotus Emira211826

All Two Seaters ranked by MPG

Questions people ask

What is the best MPG for a Porsche 718?

The most efficient Porsche 718 the EPA has rated is the 2025 718 Boxster at 24 MPG combined (21 city, 27 highway).

What MPG does the 2025 Porsche 718 get?

2025 Porsche 718 trims range from 16 to 24 MPG combined, depending on engine, transmission and drivetrain.

Which Porsche 718 has the worst fuel economy?

The 2025 718 GT4 RS is the lowest rated at 16 MPG combined.

How much does it cost to fuel a Porsche 718 for a year?

At $5.16 a gallon for premium and 15,000 miles a year, the cheapest 2025 Porsche 718 to fuel is the 718 Boxster, 2.0 L, 4 cyl (24 MPG) at $3,230 a year. The 718 Spyder RS, 4.0 L, 6 cyl (16 MPG) costs $4,840, so the thriftier trim saves $1,610 a year and $8,050 over five years.

More from Porsche: every Porsche model. Fuel types on this model: Premium. EPA classes: Two Seaters.