Based on data from 80 vehicles, 5,459 fuel-ups and 1,378,959 miles of driving, the 2021 Mazda 3 gets a combined Avg MPG of 28.62 with a 0.15 MPG margin of error.

Any Engine Type GAS (2) H4 DIESEL (1) H4 GAS (1) L4 ELECTRIC/GAS (2) L4 GAS (13) V4 GAS (1) V6 GAS (1) Any Body Style Sedan (5) Hatchback (20) Fastback (1) Any Submodel Skyactiv-X (2) Base (32) Turbo AWD Hatchback (33) Other (13)

Below you can see a distribution of the fuel-ups with 73 outliers (1.32%) removed.

Following shows the average MPG of each of the 80 vehicles in the system.

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• 2021 Mazda3

  2021 Mazda 3 Automatic 6 Speed Sedan
  Added Jul 2021 • 197 Fuel-ups

  Property of Rjscls

• 35.4 Avg MPG

• Mazda 3 Exceed

  2021 Mazda 3 L4 ELECTRIC/GAS Manual 6 Speed Hatchback
  Added Aug 2022 • 99 Fuel-ups

  Property of MarcoRss87

• 33.6 Avg MPG

• My 3 new

  2021 Mazda 3
  Added Aug 2021 • 198 Fuel-ups

  Property of richc804

• 25.8 Avg MPG

• Taz

  2021 Mazda 3 Turbo AWD Hatchback L4 GAS Automatic 6 Speed Hatchback
  Added Nov 2022 • 124 Fuel-ups

  Property of Jlaubers

• 25.1 Avg MPG

• My 3

  2021 Mazda 3
  Added Nov 2023 • 63 Fuel-ups

  Property of mrocc6

• 31.2 Avg MPG

• Jessica 2021 Mazda 3

  2021 Mazda 3
  Added May 2021 • 157 Fuel-ups

  Property of moyerd

• 34.3 Avg MPG

• My Mazda3 Turbo

  2021 Mazda 3 AWD Turbo Sedan PP
  Added Dec 2020 • 135 Fuel-ups

  Property of Juker72

• 29.6 Avg MPG

• Mazda 3

  2021 Mazda 3 Skyactive-G L4 GAS
  Added Sep 2024 • 16 Fuel-ups

  Property of wucinac

• 33.5 Avg MPG

• 2021 Mazda Mazda3

  2021 Mazda 3 Premium
  Added Dec 2020 • 101 Fuel-ups

  Property of mvv91941

• 26.4 Avg MPG

• Mazda 3 Hatch

  2021 Mazda 3
  Added Sep 2021 • 80 Fuel-ups

  Property of kimn

• 27.6 Avg MPG

• Mazda

  2021 Mazda 3 Skyactiv-X L4 GAS Automatic 6 Speed Fastback
  Added Jan 2024 • 42 Fuel-ups

  Property of nicholas0000

• 31.4 Avg MPG

• Mazda 3

  2021 Mazda 3
  Added Jan 2024 • 36 Fuel-ups

  Property of mabates

• 26.2 Avg MPG

• Mazda3 2.5 Turbo

  2021 Mazda 3 Turbo AWD Hatchback
  Added Dec 2020 • 247 Fuel-ups

  Property of polird

• 30.1 Avg MPG

• O-M Three

  2021 Mazda 3 Turbo AWD Hatchback L4 GAS Automatic 6 Speed
  Added Nov 2023 • 49 Fuel-ups

  Property of r56turbo

• 27.5 Avg MPG

• 2021 Mazda 3 2.5L Turbo AWD

  2021 Mazda 3 Turbo AWD Hatchback L4 GAS Automatic 6 Speed Hatchback
  Added Mar 2021 • 180 Fuel-ups

  Property of tommyz

• 25.8 Avg MPG

• My red hatchback

  2021 Mazda 3 Automatic 6 Speed Hatchback
  Added Mar 2021 • 95 Fuel-ups

  Property of ford1953jimfu

• 33.4 Avg MPG

• My 3 Turbo AWD

  2021 Mazda 3 Turbo PP
  Added Dec 2020 • 210 Fuel-ups

  Property of bradbanwarth

• 26.9 Avg MPG

• Mazda3

  2021 Mazda 3 L4 GAS Manual 6 Speed Hatchback
  Added Dec 2020 • 113 Fuel-ups

  Property of rgonzales0494

• 34.3 Avg MPG

• 2021 Mazda 3

  2021 Mazda 3 L4 GAS Automatic 6 Speed
  Added Feb 2021 • 140 Fuel-ups

  Property of journeej

• 30.1 Avg MPG

• Mazda3

  2021 Mazda 3 Hatchback GAS Manual 6 Speed
  Added Sep 2024 • 59 Fuel-ups

  Property of pklukeram

• 30.1 Avg MPG

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