What is the diameter of a 235/65R18 tire?

A 235/65R18 tire has an overall diameter of 30.03 inches (762.8mm).

How many revolutions per mile does a 235/65R18 tire make?

A 235/65R18 tire makes approximately 672 revolutions per mile.

What rim width is recommended for 235/65R18 tires?

The recommended wheel rim width for a 235/65R18 tire is 5.9" - 8.2".

235/65R18

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 235/65R18 tire size features an overall diameter of 30.03 inches, a section width of 9.3 inches (235mm), and rotates 672 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Audi Q6 e-tron, Cadillac XT5.

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Physical Dimensions & Specs

Overall Diameter

30.03"

762.8 mm

Section Width

235 mm

9.25" wide

Sidewall Height

6.01"

152.7 mm (65% aspect)

Revolutions / Mile

672

Circumference: 94.33"

Rim Diameter

18"

Wheel size

Recommended Rim Width

5.9" - 8.2"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 235/65R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)235/65R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:30.0"

Sidewall:6.0"

Revs/Mile:672

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

-1.5%At 60 mph reading, actual speed is 59.1 mph

Indicated	Actual Speed	Diff
20 mph	19.7 mph	-0.3 mph
30 mph	29.5 mph	-0.5 mph
45 mph	44.3 mph	-0.7 mph
60 mph	59.1 mph	-0.9 mph
75 mph	73.9 mph	-1.1 mph
90 mph	88.6 mph	-1.4 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:-0.23" lower ground clearance

Vehicles That Fit 235/65R18 (150+ Models)

Factory standard and optional vehicle fitments utilizing 235/65R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2025	Audi Q6 e-tron	Premium, AWD	View 2025 Q6 e-tron ›
2025	Audi Q6 e-tron	Premium, RWD	View 2025 Q6 e-tron ›
2017	Cadillac XT5	Luxury, FWD	View 2017 XT5 ›
2017	Cadillac XT5	Luxury, 4WD	View 2017 XT5 ›
2017	Cadillac XT5	Base	View 2017 XT5 ›
2018	Cadillac XT5	Base, 4WD	View 2018 XT5 ›
2018	Cadillac XT5	Base, FWD	View 2018 XT5 ›
2018	Cadillac XT5	Luxury, 4WD	View 2018 XT5 ›
2018	Cadillac XT5	Luxury, FWD	View 2018 XT5 ›
2019	Cadillac XT5	Base, 4WD	View 2019 XT5 ›
2019	Cadillac XT5	Base, FWD	View 2019 XT5 ›
2019	Cadillac XT5	Luxury, 4WD	View 2019 XT5 ›
2019	Cadillac XT5	Luxury, FWD	View 2019 XT5 ›
2020	Cadillac XT5	Luxury, 4WD	View 2020 XT5 ›
2020	Cadillac XT5	Luxury, FWD	View 2020 XT5 ›
2020	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2020 XT5 ›
2020	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2020 XT5 ›
2020	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2020 XT5 ›
2020	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2020 XT5 ›
2021	Cadillac XT5	Luxury, 4WD	View 2021 XT5 ›
2021	Cadillac XT5	Luxury, FWD	View 2021 XT5 ›
2021	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2021 XT5 ›
2021	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2021 XT5 ›
2021	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2021 XT5 ›
2021	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2021 XT5 ›
2021	Cadillac XT6	Luxury, 4WD	View 2021 XT6 ›
2021	Cadillac XT6	Luxury, FWD	View 2021 XT6 ›
2022	Cadillac XT5	Luxury, 4WD	View 2022 XT5 ›
2022	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2022 XT5 ›
2022	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2022 XT5 ›
2022	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2022 XT5 ›
2022	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2022 XT5 ›
2022	Cadillac XT6	Luxury, 4WD	View 2022 XT6 ›
2022	Cadillac XT6	Luxury, FWD	View 2022 XT6 ›
2022	Cadillac XT5	Luxury, FWD	View 2022 XT5 ›
2023	Cadillac XT5	Luxury, 4WD	View 2023 XT5 ›
2023	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2023 XT5 ›
2023	Cadillac XT5	Luxury, FWD	View 2023 XT5 ›
2023	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2023 XT5 ›
2023	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2023 XT5 ›
2023	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2023 XT5 ›
2023	Cadillac XT6	Luxury, FWD	View 2023 XT6 ›
2023	Cadillac XT6	Luxury, 4WD	View 2023 XT6 ›
2024	Cadillac XT5	Luxury, 4WD	View 2024 XT5 ›
2024	Cadillac XT5	Luxury, FWD	View 2024 XT5 ›
2024	Cadillac XT6	Luxury, 4WD	View 2024 XT6 ›
2024	Cadillac XT6	Luxury, FWD	View 2024 XT6 ›
2025	Cadillac XT5	Luxury, 4WD	View 2025 XT5 ›
2025	Cadillac XT5	Luxury, FWD	View 2025 XT5 ›
2025	Cadillac XT6	Luxury, 4WD	View 2025 XT6 ›
2025	Cadillac XT6	Luxury, FWD	View 2025 XT6 ›
2019	Chevrolet Blazer	L	View 2019 Blazer ›
2019	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2019 Blazer ›
2019	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2019 Blazer ›
2020	Chevrolet Blazer	L	View 2020 Blazer ›
2020	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2020 Blazer ›
2020	Chevrolet Blazer	LT, 2.5L Eng VIN A	View 2020 Blazer ›
2020	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2020 Blazer ›
2020	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2020 Blazer ›
2020	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2020 Blazer ›
2021	Chevrolet Blazer	L	View 2021 Blazer ›
2021	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2021 Blazer ›
2021	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2021 Blazer ›
2021	Chevrolet Blazer	LT, 2.5L Eng VIN A	View 2021 Blazer ›
2021	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2021 Blazer ›
2021	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2021 Blazer ›
2022	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2022 Blazer ›
2022	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2022 Blazer ›
2022	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2022 Blazer ›
2022	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2022 Blazer ›
2023	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2023 Blazer ›
2023	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2023 Blazer ›
2023	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2023 Blazer ›
2023	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2023 Blazer ›
2024	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2024 Blazer ›
2024	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2024 Blazer ›
2024	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2024 Blazer ›
2024	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2024 Blazer ›
2025	Chevrolet Blazer	LT, 2.0L Eng VIN 4, 4WD	View 2025 Blazer ›
2025	Chevrolet Blazer	LT, 3.6L Eng VIN S, 4WD	View 2025 Blazer ›
2025	Chevrolet Blazer	LT, 2.0L Eng VIN 4, FWD	View 2025 Blazer ›
2025	Chevrolet Blazer	LT, 3.6L Eng VIN S, FWD	View 2025 Blazer ›
2013	Infiniti JX35	FWD	View 2013 JX35 ›
2013	Infiniti JX35	AWD	View 2013 JX35 ›
2014	Infiniti QX60	Base, AWD	View 2014 QX60 ›
2014	Infiniti QX60	Base, FWD	View 2014 QX60 ›
2014	Infiniti QX60	Hybrid, AWD	View 2014 QX60 ›
2014	Infiniti QX60	Hybrid, FWD	View 2014 QX60 ›
2015	Infiniti QX60	Base, AWD	View 2015 QX60 ›
2015	Infiniti QX60	Base, FWD	View 2015 QX60 ›
2015	Infiniti QX60	Hybrid, AWD	View 2015 QX60 ›
2015	Infiniti QX60	Hybrid, FWD	View 2015 QX60 ›
2016	Infiniti QX60	Base, FWD	View 2016 QX60 ›
2016	Infiniti QX60	Base, AWD	View 2016 QX60 ›
2016	Infiniti QX60	Hybrid, AWD	View 2016 QX60 ›
2016	Infiniti QX60	Hybrid, FWD	View 2016 QX60 ›
2017	Infiniti QX60	Base, AWD	View 2017 QX60 ›
2017	Infiniti QX60	Base, FWD	View 2017 QX60 ›
2017	Infiniti QX60	Hybrid, FWD	View 2017 QX60 ›
2017	Infiniti QX60	Hybrid, AWD	View 2017 QX60 ›
2018	Infiniti QX60	AWD	View 2018 QX60 ›
2018	Infiniti QX60	FWD	View 2018 QX60 ›
2019	Infiniti QX60	Luxe, AWD	View 2019 QX60 ›
2019	Infiniti QX60	Luxe, FWD	View 2019 QX60 ›
2019	Infiniti QX60	Pure, AWD	View 2019 QX60 ›
2019	Infiniti QX60	Pure, FWD	View 2019 QX60 ›
2020	Infiniti QX60	Luxe, AWD	View 2020 QX60 ›
2020	Infiniti QX60	Luxe, FWD	View 2020 QX60 ›
2020	Infiniti QX60	Pure, AWD	View 2020 QX60 ›
2020	Infiniti QX60	Pure, FWD	View 2020 QX60 ›
2019	Jaguar I-Pace	S	View 2019 I-Pace ›
2020	Jaguar I-Pace	S	View 2020 I-Pace ›
2016	Lexus RX 350	Base, FWD	View 2016 RX 350 ›
2016	Lexus RX 350	Base, AWD	View 2016 RX 350 ›
2016	Lexus RX 450h	Base, 3.5L Eng VIN F	View 2016 RX 450h ›
2016	Lexus RX 450h	Base, 3.5L Eng VIN G	View 2016 RX 450h ›
2017	Lexus RX 350	Base, AWD	View 2017 RX 350 ›
2017	Lexus RX 350	Base, FWD	View 2017 RX 350 ›
2017	Lexus RX 450h	Base	View 2017 RX 450h ›
2018	Lexus RX 450h	Base	View 2018 RX 450h ›
2018	Lexus RX 350	Base, AWD	View 2018 RX 350 ›
2018	Lexus RX 350L	AWD	View 2018 RX 350L ›
2018	Lexus RX 350	Base, FWD	View 2018 RX 350 ›
2018	Lexus RX 350L	FWD	View 2018 RX 350L ›
2018	Lexus RX 450hL	RX 450hL	View 2018 RX 450hL ›
2019	Lexus RX 350	Base, FWD	View 2019 RX 350 ›
2019	Lexus RX 350L	FWD	View 2019 RX 350L ›
2019	Lexus RX 450h	Base	View 2019 RX 450h ›
2019	Lexus RX 350	Base, AWD	View 2019 RX 350 ›
2019	Lexus RX 350L	AWD	View 2019 RX 350L ›
2019	Lexus RX 450hL	RX 450hL	View 2019 RX 450hL ›
2020	Lexus RX 350L	FWD	View 2020 RX 350L ›
2020	Lexus RX 350	Base, AWD	View 2020 RX 350 ›
2020	Lexus RX 450h	Base	View 2020 RX 450h ›
2020	Lexus RX 350	Base, FWD	View 2020 RX 350 ›
2020	Lexus RX 350L	AWD	View 2020 RX 350L ›
2020	Lexus RX 450hL	RX 450hL	View 2020 RX 450hL ›
2021	Lexus RX 350L	AWD	View 2021 RX 350L ›
2021	Lexus RX 350L	FWD	View 2021 RX 350L ›
2021	Lexus RX 450h	Base	View 2021 RX 450h ›
2021	Lexus RX 350	Base, AWD	View 2021 RX 350 ›
2021	Lexus RX 350	Base, FWD	View 2021 RX 350 ›
2021	Lexus RX 450hL	RX 450hL	View 2021 RX 450hL ›
2022	Lexus RX 350	Base, AWD	View 2022 RX 350 ›
2022	Lexus RX 350L	FWD	View 2022 RX 350L ›
2022	Lexus RX 450h	Base	View 2022 RX 450h ›
2022	Lexus RX 350	Base, FWD	View 2022 RX 350 ›
2022	Lexus RX 350L	AWD	View 2022 RX 350L ›
2022	Lexus RX 450hL	RX 450hL	View 2022 RX 450hL ›
2013	Nissan Pathfinder	S, FWD	View 2013 Pathfinder ›