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215/40R18

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 215/40R18 tire size features an overall diameter of 24.77 inches, a section width of 8.5 inches (215mm), and rotates 814 times per mile. It is a standard factory tire fitment on 72+ vehicle models including BMW 135i.

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Physical Dimensions & Specs

Overall Diameter

24.77"

629.2 mm

Section Width

215 mm

8.46" wide

Sidewall Height

3.39"

86.1 mm (40% aspect)

Revolutions / Mile

814

Circumference: 77.82"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.4" - 7.5"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 215/40R18 against any proposed tire size below:

Popular Comparisons:
Tire 1 (Stock / Base)215/40R18
Overall Height:24.8"
Sidewall:3.4"
Revs/Mile:814
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682

Visual Tire & Wheel Comparison

Tire 124.8" HeightTire 229.6" Height

Speedometer Variance

+19.4%At 60 mph reading, actual speed is 71.6 mph
IndicatedActual SpeedDiff
20 mph23.9 mph+3.9 mph
30 mph35.8 mph+5.8 mph
45 mph53.7 mph+8.7 mph
60 mph71.6 mph+11.6 mph
75 mph89.5 mph+14.5 mph
90 mph107.5 mph+17.5 mph

Fender & Suspension Clearance

Fitment Status: MODERATE RISK

Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.

Inner Strut Space:7.7mm LESS clearance
Outer Fender Push:Extends 17.7mm further out
Ride Height Delta:+2.40" ground clearance

Vehicles That Fit 215/40R18 (72+ Models)

Factory standard and optional vehicle fitments utilizing 215/40R18 tires:

YearMake & ModelTrim / VariantLookup Specs
2008BMW 135i2D Convertible, AutomaticView 2008 135i ›
2008BMW 135i2D Convertible, StandardView 2008 135i ›
2008BMW 135i2D Coupe, AutomaticView 2008 135i ›
2008BMW 135i2D Coupe, StandardView 2008 135i ›
2009BMW 135i2D Convertible, AutomaticView 2009 135i ›
2009BMW 135i2D Convertible, StandardView 2009 135i ›
2009BMW 135i2D Coupe, AutomaticView 2009 135i ›
2009BMW 135i2D Coupe, StandardView 2009 135i ›
2010BMW 135i2D Convertible, AutomaticView 2010 135i ›
2010BMW 135i2D Convertible, StandardView 2010 135i ›
2010BMW 135i2D Coupe, AutomaticView 2010 135i ›
2010BMW 135i2D Coupe, StandardView 2010 135i ›
2011BMW 135i2D Convertible, Automatic DCTView 2011 135i ›
2011BMW 135i2D Coupe, Automatic DCTView 2011 135i ›
2011BMW 135i2D Coupe, StandardView 2011 135i ›
2011BMW 135i2D Convertible, StandardView 2011 135i ›
2012BMW 135i2D Convertible, Automatic DCT TransView 2012 135i ›
2012BMW 135i2D Convertible, Standard TransView 2012 135i ›
2012BMW 135i2D Coupe, Automatic DCT TransView 2012 135i ›
2012BMW 135i2D Coupe, Standard TransView 2012 135i ›
2013BMW 135is2D Convertible, Automatic DCT TransView 2013 135is ›
2013BMW 135i2D Convertible, Standard TransView 2013 135i ›
2013BMW 135i2D Coupe, Automatic DCT TransView 2013 135i ›
2013BMW 135is2D Coupe, Standard TransView 2013 135is ›
2013BMW 135is2D Convertible, Standard TransView 2013 135is ›
2013BMW 135i2D Convertible, Automatic DCT TransView 2013 135i ›
2013BMW 135is2D Coupe, Automatic DCT TransView 2013 135is ›
2013BMW 135i2D Coupe, Standard TransView 2013 135i ›
2008Honda CivicSi, 2D CoupeView 2008 Civic ›
2008Honda CivicSi, 4D SedanView 2008 Civic ›
2013Hyundai VelosterTurbo, Standard TransView 2013 Veloster ›
2013Hyundai VelosterTurbo, Automatic TransView 2013 Veloster ›
2014Hyundai VelosterRE:FLEXView 2014 Veloster ›
2014Hyundai VelosterTurbo R-SpecView 2014 Veloster ›
2014Hyundai VelosterTurbo, Automatic TransView 2014 Veloster ›
2014Hyundai VelosterTurbo, Standard Trans, Trans Mfr CD M6CF1View 2014 Veloster ›
2014Hyundai VelosterTurbo, Standard Trans, Trans Mfr CD M6CF3-1View 2014 Veloster ›
2015Hyundai VelosterRE:FLEXView 2015 Veloster ›
2015Hyundai VelosterTurbo R-SpecView 2015 Veloster ›
2015Hyundai VelosterTurbo, Automatic TransView 2015 Veloster ›
2015Hyundai VelosterTurbo, Standard TransView 2015 Veloster ›
2018Subaru BRZtSView 2018 BRZ ›
2020Subaru BRZtSView 2020 BRZ ›
2022Subaru BRZLimited, Automatic TransView 2022 BRZ ›
2022Subaru BRZLimited, Standard TransView 2022 BRZ ›
2023Subaru BRZLimited, Automatic TransView 2023 BRZ ›
2023Subaru BRZLimited, Standard TransView 2023 BRZ ›
2024Subaru BRZLimited, Automatic TransView 2024 BRZ ›
2024Subaru BRZLimited, Standard TransView 2024 BRZ ›
2024Subaru BRZtSView 2024 BRZ ›
2025Subaru BRZLimited, Automatic TransView 2025 BRZ ›
2025Subaru BRZtSView 2025 BRZ ›
2025Subaru BRZLimited, Standard TransView 2025 BRZ ›
2019Toyota 86TRD Special EditionView 2019 86 ›
2020Toyota 86Base, Standard TransView 2020 86 ›
2020Toyota 86GT, Automatic TransView 2020 86 ›
2020Toyota 86GT, Standard TransView 2020 86 ›
2020Toyota 86Base, Automatic TransView 2020 86 ›
2022Toyota GR86Premium, Automatic TransView 2022 GR86 ›
2022Toyota GR86Premium, Standard TransView 2022 GR86 ›
2023Toyota GR8610th Anniversary Edition, Automatic TransView 2023 GR86 ›
2023Toyota GR8610th Anniversary Edition, Standard TransView 2023 GR86 ›
2023Toyota GR86Premium, Automatic TransView 2023 GR86 ›
2023Toyota GR86Premium, Standard TransView 2023 GR86 ›
2024Toyota GR86Premium, Automatic TransView 2024 GR86 ›
2024Toyota GR86Premium, Standard TransView 2024 GR86 ›
2024Toyota GR86Trueno Edition, Automatic TransView 2024 GR86 ›
2024Toyota GR86Trueno Edition, Standard TransView 2024 GR86 ›
2025Toyota GR86Premium, Automatic TransView 2025 GR86 ›
2025Toyota GR86Hakone Edition, Automatic TransView 2025 GR86 ›
2025Toyota GR86Premium, Standard TransView 2025 GR86 ›
2025Toyota GR86Hakone Edition, Standard TransView 2025 GR86 ›