Based on data from 75 vehicles, 4,621 fuel-ups and 1,164,832 miles of driving, the 2021 Mazda 3 gets a combined Avg MPG of 28.58 with a 0.16 MPG margin of error.

Any Engine Type GAS (1) H4 DIESEL (1) H4 GAS (1) L4 ELECTRIC/GAS (2) L4 GAS (12) V4 GAS (1) V6 GAS (1) Any Body Style Sedan (5) Hatchback (20) Any Submodel Base (32) Turbo AWD Hatchback (32) Other (11)

Below you can see a distribution of the fuel-ups with 60 outliers (1.28%) removed.

Following shows the average MPG of each of the 75 vehicles in the system.

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• Mazda

  2021 Mazda 3 Sport Tech L4 GAS
  Added Jan 2024 • 5 Fuel-ups

  Property of nicholas0000

• 31.0 Avg MPG

• My 3

  2021 Mazda 3 Turbo AWD Hatchback
  Added Feb 2023 • 15 Fuel-ups

  Property of blancanblackbolt

• 23.0 Avg MPG

• Petra

  2021 Mazda 3 Turbo AWD Hatchback V6 GAS Automatic 6 Speed Hatchback
  Added Nov 2021 • 165 Fuel-ups

  Property of Draconas65

• 34.3 Avg MPG

• Mazda 3 PP Hatchback

  2021 Mazda 3 Turbo AWD Hatchback
  Added Feb 2023 • 33 Fuel-ups

  Property of sweetleader

• 27.1 Avg MPG

• Mazda 3 2021

  2021 Mazda 3
  Added May 2021 • 85 Fuel-ups

  Property of Tenchijin

• 28.2 Avg MPG

• Ruby

  2021 Mazda 3 Turbo AWD Hatchback
  Added Sep 2023 • 3 Fuel-ups

  Property of greenmonster

• 22.2 Avg MPG

• 2021 Mazda3 Turbo

  2021 Mazda 3 Turbo AWD Hatchback
  Added May 2023 • 37 Fuel-ups

  Property of Darkan

• 29.6 Avg MPG

• Mazda 3 2.5 Premium

  2021 Mazda 3 Premium H4 DIESEL
  Added Jul 2023 • 6 Fuel-ups

  Property of NaKPump

• 26.2 Avg MPG

• Mazda3

  2021 Mazda 3 Automatic 6 Speed Hatchback
  Added Aug 2021 • 33 Fuel-ups

  Property of ontario102

• 26.8 Avg MPG

• My 3

  2021 Mazda 3 Turbo AWD Hatchback
  Added Jan 2022 • 74 Fuel-ups

  Property of Ericks_LE_Miata

• 25.3 Avg MPG

• Tom's Mazda 3

  2021 Mazda 3
  Added Oct 2022 • 16 Fuel-ups

  Property of tommojohnson

• 29.3 Avg MPG

• Mazda 3 Saloon

  2021 Mazda 3 Saloon H4 GAS Automatic 6 Speed
  Added Jul 2021 • 19 Fuel-ups

  Property of gowrlea

• 33.4 Avg MPG

• 2021 Mazda3 - Rental

  2021 Mazda 3 Automatic 6 Speed Sedan
  Added Dec 2022 • 5 Fuel-ups

  Property of uswg01

• 41.8 Avg MPG

• Mazda3 2.5L Turbo AWD

  2021 Mazda 3 Premium Plus L4 GAS Automatic 6 Speed
  Added Jan 2021 • 162 Fuel-ups

  Property of jhannah69

• 31.0 Avg MPG

• Tom's Mazda 3

  2021 Mazda 3 Automatic 6 Speed Sedan
  Added Oct 2021 • 41 Fuel-ups

  Property of Itstommoj

• 30.4 Avg MPG

• Minxy

  2021 Mazda 3 G20 Evolve L4 GAS
  Added Feb 2022 • 24 Fuel-ups

  Property of dukeninja

• 27.2 Avg MPG

• My 3

  2021 Mazda 3 Turbo AWD Hatchback
  Added Nov 2021 • 65 Fuel-ups

  Property of richyrocket

• 26.3 Avg MPG

• Maya the Mazda

  2021 Mazda 3 Automatic 6 Speed Hatchback
  Added Dec 2021 • 55 Fuel-ups

  Property of civicguy

• 33.1 Avg MPG

• My 3

  2021 Mazda 3
  Added Jul 2022 • 6 Fuel-ups

  Property of vladdedita

• 32.1 Avg MPG

• The M3

  2021 Mazda 3 Turbo AWD Hatchback
  Added May 2022 • 17 Fuel-ups

  Property of sinjun

• 28.7 Avg MPG

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