What is the diameter of a 275/40R20 tire?

A 275/40R20 tire has an overall diameter of 28.66 inches (728.0mm).

How many revolutions per mile does a 275/40R20 tire make?

A 275/40R20 tire makes approximately 704 revolutions per mile.

What rim width is recommended for 275/40R20 tires?

The recommended wheel rim width for a 275/40R20 tire is 6.9" - 9.6".

275/40R20

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 275/40R20 tire size features an overall diameter of 28.66 inches, a section width of 10.8 inches (275mm), and rotates 704 times per mile. It is a standard factory tire fitment on 150+ vehicle models including BMW X5.

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Physical Dimensions & Specs

Overall Diameter

28.66"

728.0 mm

Section Width

275 mm

10.83" wide

Sidewall Height

4.33"

110.0 mm (40% aspect)

Revolutions / Mile

704

Circumference: 90.04"

Rim Diameter

20"

Wheel size

Recommended Rim Width

6.9" - 9.6"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 275/40R20 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)275/40R20

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:28.7"

Sidewall:4.3"

Revs/Mile:704

Tire 2 (New / Compare)245/60R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:29.6"

Sidewall:5.8"

Revs/Mile:682

Visual Tire & Wheel Comparison

Speedometer Variance

+3.2%At 60 mph reading, actual speed is 61.9 mph

Indicated	Actual Speed	Diff
20 mph	20.6 mph	+0.6 mph
30 mph	31.0 mph	+1.0 mph
45 mph	46.4 mph	+1.4 mph
60 mph	61.9 mph	+1.9 mph
75 mph	77.4 mph	+2.4 mph
90 mph	92.9 mph	+2.9 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:+0.46" ground clearance

Vehicles That Fit 275/40R20 (150+ Models)

Factory standard and optional vehicle fitments utilizing 275/40R20 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2002	BMW X5	46i	View 2002 X5 ›
2003	BMW X5	46i	View 2003 X5 ›
2004	BMW X5	48i	View 2004 X5 ›
2005	BMW X5	48i	View 2005 X5 ›
2006	BMW X5	48i	View 2006 X5 ›
2008	BMW X6	35i	View 2008 X6 ›
2008	BMW X6	50i	View 2008 X6 ›
2010	BMW X6	ActiveHybrid	View 2010 X6 ›
2010	BMW X5 M	X5 M	View 2010 X5 M ›
2010	BMW X6 M	X6 M	View 2010 X6 M ›
2011	BMW X5	35i	View 2011 X5 ›
2011	BMW X6	ActiveHybrid	View 2011 X6 ›
2011	BMW X5 M	X5 M	View 2011 X5 M ›
2011	BMW X6 M	X6 M	View 2011 X6 M ›
2012	BMW X5	35i	View 2012 X5 ›
2012	BMW X5 M	X5 M	View 2012 X5 M ›
2012	BMW X6 M	X6 M	View 2012 X6 M ›
2013	BMW X5	35i	View 2013 X5 ›
2013	BMW X5	35i Premium	View 2013 X5 ›
2013	BMW X5	35i Sport Activity	View 2013 X5 ›
2013	BMW X5 M	X5 M	View 2013 X5 M ›
2013	BMW X6 M	X6 M	View 2013 X6 M ›
2014	BMW X6 M	X6 M	View 2014 X6 M ›
2010	Chevrolet Camaro	LT, Automatic	View 2010 Camaro ›
2010	Chevrolet Camaro	LT, Standard	View 2010 Camaro ›
2010	Chevrolet Camaro	SS, 6.2 J	View 2010 Camaro ›
2010	Chevrolet Camaro	SS, 6.2 W	View 2010 Camaro ›
2011	Chevrolet Camaro	LT, 2D Convertible, Automatic	View 2011 Camaro ›
2011	Chevrolet Camaro	LT, 2D Convertible, Standard	View 2011 Camaro ›
2011	Chevrolet Camaro	LT, 2D Coupe, Automatic	View 2011 Camaro ›
2011	Chevrolet Camaro	LT, 2D Coupe, Standard	View 2011 Camaro ›
2011	Chevrolet Camaro	SS, 2D Convertible, 6.2 J	View 2011 Camaro ›
2011	Chevrolet Camaro	SS, 2D Convertible, 6.2 W	View 2011 Camaro ›
2011	Chevrolet Camaro	SS, 2D Coupe, 6.2 J	View 2011 Camaro ›
2011	Chevrolet Camaro	SS, 2D Coupe, 6.2 W	View 2011 Camaro ›
2012	Chevrolet Camaro	LT, 2D Convertible, Automatic Trans	View 2012 Camaro ›
2012	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN W	View 2012 Camaro ›
2012	Chevrolet Camaro	LT, 2D Coupe, Standard Trans	View 2012 Camaro ›
2012	Chevrolet Camaro	LT, 2D Convertible, Standard Trans	View 2012 Camaro ›
2012	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN J	View 2012 Camaro ›
2012	Chevrolet Camaro	LT, 2D Coupe, Automatic Trans	View 2012 Camaro ›
2012	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN J	View 2012 Camaro ›
2012	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN W	View 2012 Camaro ›
2013	Chevrolet Camaro	LT, 2D Convertible, Automatic Trans	View 2013 Camaro ›
2013	Chevrolet Camaro	LT, 2D Coupe, Automatic Trans	View 2013 Camaro ›
2013	Chevrolet Camaro	LT, 2D Convertible, Standard Trans	View 2013 Camaro ›
2013	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN J	View 2013 Camaro ›
2013	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN W	View 2013 Camaro ›
2013	Chevrolet Camaro	LT, 2D Coupe, Standard Trans	View 2013 Camaro ›
2013	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN J	View 2013 Camaro ›
2013	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN W, Trans Mfr CD 6L85M/MM6	View 2013 Camaro ›
2013	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN W, Trans Mfr CD 6L90M/M10	View 2013 Camaro ›
2014	Chevrolet Camaro	LT, 2D Convertible, Automatic Trans	View 2014 Camaro ›
2014	Chevrolet Camaro	LT, 2D Convertible, Standard Trans	View 2014 Camaro ›
2014	Chevrolet Camaro	LT, 2D Coupe, Automatic Trans	View 2014 Camaro ›
2014	Chevrolet Camaro	LT, 2D Coupe, Standard Trans	View 2014 Camaro ›
2014	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN J	View 2014 Camaro ›
2014	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN W	View 2014 Camaro ›
2014	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN W	View 2014 Camaro ›
2014	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN J	View 2014 Camaro ›
2015	Chevrolet Camaro	LT, 2D Convertible, Automatic Trans	View 2015 Camaro ›
2015	Chevrolet Camaro	LT, 2D Coupe, Automatic Trans	View 2015 Camaro ›
2015	Chevrolet Camaro	LT, 2D Convertible, Standard Trans	View 2015 Camaro ›
2015	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN J	View 2015 Camaro ›
2015	Chevrolet Camaro	LT, 2D Coupe, Standard Trans	View 2015 Camaro ›
2015	Chevrolet Camaro	SS, 2D Convertible, 6.2L Eng VIN W	View 2015 Camaro ›
2015	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN W	View 2015 Camaro ›
2015	Chevrolet Camaro	SS, 2D Coupe, 6.2L Eng VIN J	View 2015 Camaro ›
2015	Dodge Challenger	SRT 392, Eng CD ESG	View 2015 Challenger ›
2015	Dodge Challenger	SRT 392, Eng CD ESH	View 2015 Challenger ›
2015	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2015 Challenger ›
2015	Dodge Challenger	SRT Hellcat, Standard Trans	View 2015 Challenger ›
2015	Dodge Charger	SRT 392	View 2015 Charger ›
2015	Dodge Charger	SRT Hellcat	View 2015 Charger ›
2016	Dodge Challenger	SRT 392, Eng CD ESG	View 2016 Challenger ›
2016	Dodge Challenger	SRT 392, Eng CD ESH	View 2016 Challenger ›
2016	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2016 Challenger ›
2016	Dodge Challenger	SRT Hellcat, Standard Trans	View 2016 Challenger ›
2016	Dodge Charger	SRT 392	View 2016 Charger ›
2016	Dodge Charger	SRT Hellcat	View 2016 Charger ›
2017	Dodge Challenger	SRT 392, Eng CD ESG	View 2017 Challenger ›
2017	Dodge Challenger	SRT 392, Eng CD ESH	View 2017 Challenger ›
2017	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2017 Challenger ›
2017	Dodge Challenger	SRT Hellcat, Standard Trans	View 2017 Challenger ›
2017	Dodge Challenger	T/A 392, Eng CD ESG	View 2017 Challenger ›
2017	Dodge Challenger	T/A 392, Eng CD ESH	View 2017 Challenger ›
2017	Dodge Charger	Daytona 392	View 2017 Charger ›
2017	Dodge Charger	SRT Hellcat	View 2017 Charger ›
2017	Dodge Charger	SRT 392	View 2017 Charger ›
2018	Dodge Challenger	SRT 392, Eng CD ESG	View 2018 Challenger ›
2018	Dodge Challenger	SRT 392, Eng CD ESH	View 2018 Challenger ›
2018	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2018 Challenger ›
2018	Dodge Challenger	SRT Hellcat, Standard Trans	View 2018 Challenger ›
2018	Dodge Challenger	T/A 392, Eng CD ESG	View 2018 Challenger ›
2018	Dodge Challenger	T/A 392, Eng CD ESH	View 2018 Challenger ›
2018	Dodge Charger	Daytona 392	View 2018 Charger ›
2018	Dodge Charger	SRT 392	View 2018 Charger ›
2018	Dodge Charger	SRT Hellcat	View 2018 Charger ›
2019	Dodge Challenger	SRT Hellcat Redeye	View 2019 Challenger ›
2019	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2019 Challenger ›
2019	Dodge Challenger	SRT Hellcat, Standard Trans	View 2019 Challenger ›
2019	Dodge Charger	SRT Hellcat	View 2019 Charger ›
2020	Dodge Challenger	SRT Hellcat Redeye	View 2020 Challenger ›
2020	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2020 Challenger ›
2020	Dodge Challenger	SRT Hellcat, Standard Trans	View 2020 Challenger ›
2021	Dodge Challenger	SRT Hellcat Redeye	View 2021 Challenger ›
2021	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2021 Challenger ›
2021	Dodge Challenger	SRT Hellcat, Standard Trans	View 2021 Challenger ›
2022	Dodge Challenger	SRT Hellcat Redeye	View 2022 Challenger ›
2022	Dodge Challenger	SRT Hellcat, Automatic Trans	View 2022 Challenger ›
2022	Dodge Challenger	SRT Hellcat, Standard Trans	View 2022 Challenger ›
2023	Genesis G90	3.5T	View 2023 G90 ›
2024	Genesis G90	3.5T	View 2024 G90 ›
2025	Genesis G90	3.5T	View 2025 G90 ›
2006	Land Rover Range Rover Sport	Supercharged	View 2006 Range Rover Sport ›
2007	Land Rover Range Rover Sport	Supercharged	View 2007 Range Rover Sport ›
2008	Land Rover Range Rover Sport	LE	View 2008 Range Rover Sport ›
2008	Land Rover Range Rover Sport	Supercharged	View 2008 Range Rover Sport ›
2009	Land Rover Range Rover Sport	Supercharged	View 2009 Range Rover Sport ›
2010	Land Rover Range Rover Sport	Supercharged	View 2010 Range Rover Sport ›
2011	Land Rover Range Rover Sport	Autobiography	View 2011 Range Rover Sport ›
2011	Land Rover Range Rover Sport	Supercharged	View 2011 Range Rover Sport ›
2011	Land Rover Range Rover Sport	HSE	View 2011 Range Rover Sport ›
2011	Land Rover Range Rover Sport	GT Limited Edition	View 2011 Range Rover Sport ›
2012	Land Rover Range Rover Sport	Autobiography	View 2012 Range Rover Sport ›
2012	Land Rover Range Rover Sport	GT Limited Edition 3	View 2012 Range Rover Sport ›
2012	Land Rover Range Rover Sport	HSE	View 2012 Range Rover Sport ›
2012	Land Rover Range Rover Sport	Supercharged	View 2012 Range Rover Sport ›
2013	Land Rover Range Rover Sport	GT Limited Edition	View 2013 Range Rover Sport ›
2013	Land Rover Range Rover Sport	Supercharged	View 2013 Range Rover Sport ›
2013	Land Rover Range Rover Sport	HSE Lux	View 2013 Range Rover Sport ›
2013	Land Rover Range Rover Sport	Autobiography	View 2013 Range Rover Sport ›
2018	Lexus LS 500	F Sport, AWD	View 2018 LS 500 ›
2018	Lexus LS 500	F Sport, RWD	View 2018 LS 500 ›
2018	Lexus LC 500	LC 500	View 2018 LC 500 ›
2018	Lexus LC 500h	LC 500h	View 2018 LC 500h ›
2019	Lexus LS 500	F Sport, AWD	View 2019 LS 500 ›
2019	Lexus LS 500	F Sport, RWD	View 2019 LS 500 ›
2019	Lexus LC 500h	LC 500h	View 2019 LC 500h ›
2019	Lexus LC 500	LC 500	View 2019 LC 500 ›
2020	Lexus LS 500	Base, RWD	View 2020 LS 500 ›
2020	Lexus LS 500	Base, AWD	View 2020 LS 500 ›
2020	Lexus LS 500	F Sport, AWD	View 2020 LS 500 ›
2020	Lexus LS 500	F Sport, RWD	View 2020 LS 500 ›
2020	Lexus LC 500	LC 500	View 2020 LC 500 ›
2020	Lexus LC 500h	LC 500h	View 2020 LC 500h ›
2021	Lexus LC 500	2D Coupe	View 2021 LC 500 ›
2021	Lexus LC 500	2D Convertible	View 2021 LC 500 ›
2021	Lexus LS 500	F Sport, AWD	View 2021 LS 500 ›
2021	Lexus LS 500	F Sport, RWD	View 2021 LS 500 ›