Based on data from 92 vehicles, 4,686 fuel-ups and 1,412,677 miles of driving, the 2021 BMW X3 gets a combined Avg MPG of 23.63 with a 0.18 MPG margin of error.

Any Engine Type 2.0L L4 ELECTRIC/GAS (8) 2.0L L4 GAS (37) 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) (4) 3.0L L6 GAS (34) L4 DIESEL (1) L6 DIESEL (2) Any Body Style Sport Utility (24) Any Submodel xDrive30i Protection (1) sDrive20i (2) M (3) M Competition (11) xDrive30e (12) sDrive30i (13) xDrive30i (22) M40i (24) Other (4)

Below you can see a distribution of the fuel-ups with 310 outliers (6.20%) removed.

Following shows the average MPG of each of the 92 vehicles in the system.

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• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2021 • 107 Fuel-ups

  Property of mobike008

• 22.7 Avg MPG

• X3 M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2023 • 93 Fuel-ups

  Property of RS2017

• 19.7 Avg MPG

• Knapp

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Oct 2022 • 57 Fuel-ups

  Property of SeanK

• 26.1 Avg MPG

• X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 56 Fuel-ups

  Property of HBrooks

• 27.2 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 90 Fuel-ups

  Property of alibusoul

• 17.4 Avg MPG

• 2021 X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2022 • 145 Fuel-ups

  Property of jerseyjers

• 15.8 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jan 2025 • 12 Fuel-ups

  Property of jeanharry

• 18.4 Avg MPG

• My X3

  2021 BMW X3 sDrive30i
  Added Sep 2020 • 341 Fuel-ups

  Property of jav02c

• 26.2 Avg MPG

• BMW X3 M40i - Alex

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Dec 2023 • 32 Fuel-ups

  Property of mcdanielvzw

• 24.8 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 32 Fuel-ups

  Property of rainman_X3MC

• 17.4 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 40 Fuel-ups

  Property of timmiii

• 17.6 Avg MPG

• BMW

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Sport Utility
  Added Jan 2024 • 23 Fuel-ups

  Property of J_Willy

• 28.3 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 43 Fuel-ups

  Property of stephnandy

• 24.6 Avg MPG

• X3e

  2021 BMW X3 xDrive30e 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) Automatic 8 Speed Sport Utility
  Added Oct 2020 • 75 Fuel-ups

  Property of tmeasday1

• 39.3 Avg MPG

• My X3

  2021 BMW X3 xDrive30e 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) Automatic 8 Speed
  Added Mar 2024 • 21 Fuel-ups

  Property of jhoytde

• 49.4 Avg MPG

• Helmut Schmetterling

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2021 • 269 Fuel-ups

  Property of mxro

• 24.0 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2024 • 14 Fuel-ups

  Property of g10ac05ta

• 14.2 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2021 • 141 Fuel-ups

  Property of littlekingdoms

• 26.5 Avg MPG

• My X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2022 • 68 Fuel-ups

  Property of ApexMom

• 25.5 Avg MPG

• My X3M Comp

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2024 • 28 Fuel-ups

  Property of foxtrot121

• 18.8 Avg MPG

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