Based on data from 93 vehicles, 4,770 fuel-ups and 1,437,886 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 (3) 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 (5)

Below you can see a distribution of the fuel-ups with 313 outliers (6.16%) removed.

Following shows the average MPG of each of the 93 vehicles in the system.

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• Dirty Diana!

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2024 • 20 Fuel-ups

  Property of beardgod

• 20.1 Avg MPG

• BMW M40d

  2021 BMW X3 M40d L6 DIESEL
  Added Mar 2025 • 3 Fuel-ups

  Property of amartinnz

• 30.9 Avg MPG

• X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Mar 2024 • 61 Fuel-ups

  Property of HBrooks

• 27.2 Avg MPG

• BMW X3 M40i - Alex

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Dec 2023 • 33 Fuel-ups

  Property of mcdanielvzw

• 24.7 Avg MPG

• BMW X3 xDrive30e 2021

  2021 BMW X3 xDrive30e 2.0L L4 PLUG-IN HYBRID EV-GAS (PHEV) Automatic 8 Speed
  Added May 2021 • 16 Fuel-ups

  Property of yosemite52

• 69.6 Avg MPG

• BMW X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Oct 2021 • 53 Fuel-ups

  Property of midek

• 28.4 Avg MPG

• X3M

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Jan 2025 • 14 Fuel-ups

  Property of jeanharry

• 18.5 Avg MPG

• Wendi x3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed Sport Utility
  Added Mar 2024 • 23 Fuel-ups

  Property of WendiMcYeti

• 21.7 Avg MPG

• My X3

  2021 BMW X3 M40i
  Added Dec 2020 • 134 Fuel-ups

  Property of donhcd

• 23.3 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jun 2021 • 128 Fuel-ups

  Property of Fuel_Lee

• 18.7 Avg MPG

• My X3

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2024 • 41 Fuel-ups

  Property of timmiii

• 17.6 Avg MPG

• My X3

  2021 BMW X3 sDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2022 • 70 Fuel-ups

  Property of ApexMom

• 25.5 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Apr 2021 • 142 Fuel-ups

  Property of littlekingdoms

• 26.4 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 34 Fuel-ups

  Property of rainman_X3MC

• 17.5 Avg MPG

• Knapp

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Oct 2022 • 58 Fuel-ups

  Property of SeanK

• 26.1 Avg MPG

• X3 M40i

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added May 2021 • 93 Fuel-ups

  Property of SWReefKeeper

• 17.9 Avg MPG

• My X3

  2021 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed
  Added Sep 2021 • 93 Fuel-ups

  Property of xinyeee

• 20.9 Avg MPG

• My X3

  2021 BMW X3 M Competition 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2024 • 15 Fuel-ups

  Property of g10ac05ta

• 14.1 Avg MPG

• X3 LR71 OSP

  2021 BMW X3 xDrive30e 2.0L L4 ELECTRIC/GAS Automatic 8 Speed
  Added Nov 2021 • 83 Fuel-ups

  Property of trickie

• 49.7 Avg MPG

• BMW X3 M40i

  2021 BMW X3 M40i 3.0L L6 GAS Automatic 8 Speed
  Added Sep 2023 • 38 Fuel-ups

  Property of mcgrufus

• 25.7 Avg MPG

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