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Mazda CX-30 MPG

EPA fuel economy for 19 Mazda CX-30 trims sold from 2020 to 2026. Best ever: 29 MPG (2025 CX-30 4WD). Latest model year 2026: 25 to 27 MPG combined across 2 trims.

29best combined MPG (2025)
26 / 33city / highway of the best trim
25lowest combined MPG (2026)
7model years rated
$2,310a year to fuel, cheapest 2026 trim at EPA prices

Mazda CX-30 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 $4.16 a gallon for regular and 15,000 miles a year, the cheapest 2026 Mazda CX-30 to fuel is the CX-30 4WD, 2.5 L, 4 cyl (27 MPG) at $2,310 a year. The CX-30 4WD, 2.5 L, 4 cyl (25 MPG) costs $2,500, so the thriftier trim saves $190 a year and $950 over five years.

2026 trimEngineTransmissionDriveFuelCombCost/yrvs cheapest
CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular27$2,310cheapest
CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular25$2,500+$180

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.

Mazda CX-30 MPG by year

YearBest combinedCityHwyBest trim that yearTrims
2026272431CX-30 4WD, 2.5 L, 4 cyl, Auto (S6)2
2025292633CX-30 4WD, 2.5 L, 4 cyl, Auto (S6)2
2024292633CX-30 4WD, 2.5 L, 4 cyl, Auto (S6)2
2023292633CX-30 4WD, 2.5 L, 4 cyl, Auto (S6)2
2022262431CX-30 4WD, 2.5 L, 4 cyl, Auto (S6)2
2021282533CX-30 2WD, 2.5 L, 4 cyl, Auto (S6)5
2020282533CX-30 2WD, 2.5 L, 4 cyl, Auto (S6)4

Every Mazda CX-30 trim

YearTrimEngineTransmissionDriveFuelCityHwyCombCO2 g/miFuel cost/yr
2026CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular243127329$2,310
2026CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2025CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular263329309$2,150
2025CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2024CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular263329309$2,150
2024CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2023CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular263329309$2,150
2023CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2022CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular243126334$2,400
2022CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2021CX-30 2WD2.5 L, 4 cylAuto (S6)FWDRegular253328313$2,230
2021CX-30 2WD2.5 L, 4 cylAuto (S6)FWDRegular253328319$2,230
2021CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular243126334$2,400
2021CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular243126341$2,400
2021CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular223025353$2,500
2020CX-30 2WD2.5 L, 4 cylAuto (S6)FWDRegular253328313$2,230
2020CX-30 2WD2.5 L, 4 cylAuto (S6)FWDRegular253328319$2,230
2020CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular253227323$2,310
2020CX-30 4WD2.5 L, 4 cylAuto (S6)4WDRegular243126334$2,400

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 2026 Small Sport Utility Vehicle 4WD

VehicleCombinedCityHwy
2026 Tesla Model Y Standard AWD127133120
2026 Subaru Solterra AWD120131109
2026 Toyota bZ AWD120131109
2026 Subaru Trailseeker AWD117126107
2026 Subaru Uncharted AWD117127106
2026 Toyota C-HR AWD 18inch117127107

All Small Sport Utility Vehicle 4WD ranked by MPG

Questions people ask

What is the best MPG for a Mazda CX-30?

The most efficient Mazda CX-30 the EPA has rated is the 2025 CX-30 4WD at 29 MPG combined (26 city, 33 highway).

What MPG does the 2026 Mazda CX-30 get?

2026 Mazda CX-30 trims range from 25 to 27 MPG combined, depending on engine, transmission and drivetrain.

Which Mazda CX-30 has the worst fuel economy?

The 2026 CX-30 4WD is the lowest rated at 25 MPG combined.

How much does it cost to fuel a Mazda CX-30 for a year?

At $4.16 a gallon for regular and 15,000 miles a year, the cheapest 2026 Mazda CX-30 to fuel is the CX-30 4WD, 2.5 L, 4 cyl (27 MPG) at $2,310 a year. The CX-30 4WD, 2.5 L, 4 cyl (25 MPG) costs $2,500, so the thriftier trim saves $190 a year and $950 over five years.

More from Mazda: every Mazda model. Fuel types on this model: Regular. EPA classes: Small Sport Utility Vehicle 2WD, Small Sport Utility Vehicle 4WD.