What is the diameter of a 235/55R20 tire?

A 235/55R20 tire has an overall diameter of 30.18 inches (766.6mm).

How many revolutions per mile does a 235/55R20 tire make?

A 235/55R20 tire makes approximately 668 revolutions per mile.

What rim width is recommended for 235/55R20 tires?

The recommended wheel rim width for a 235/55R20 tire is 5.9" - 8.2".

235/55R20

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 235/55R20 tire size features an overall diameter of 30.18 inches, a section width of 9.3 inches (235mm), and rotates 668 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Cadillac XT5.

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Physical Dimensions & Specs

Overall Diameter

30.18"

766.6 mm

Section Width

235 mm

9.25" wide

Sidewall Height

5.09"

129.3 mm (55% aspect)

Revolutions / Mile

668

Circumference: 94.8"

Rim Diameter

20"

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 235/55R20 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)235/55R20

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:30.2"

Sidewall:5.1"

Revs/Mile:668

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

-2.0%At 60 mph reading, actual speed is 58.8 mph

Indicated	Actual Speed	Diff
20 mph	19.6 mph	-0.4 mph
30 mph	29.4 mph	-0.6 mph
45 mph	44.1 mph	-0.9 mph
60 mph	58.8 mph	-1.2 mph
75 mph	73.5 mph	-1.5 mph
90 mph	88.2 mph	-1.8 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:-0.30" lower ground clearance

Vehicles That Fit 235/55R20 (150+ Models)

Factory standard and optional vehicle fitments utilizing 235/55R20 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2017	Cadillac XT5	Platinum	View 2017 XT5 ›
2017	Cadillac XT5	Premium Luxury, 4WD	View 2017 XT5 ›
2017	Cadillac XT5	Premium Luxury, FWD	View 2017 XT5 ›
2018	Cadillac XT5	Platinum	View 2018 XT5 ›
2018	Cadillac XT5	Premium Luxury, 4WD	View 2018 XT5 ›
2018	Cadillac XT5	Premium Luxury, FWD	View 2018 XT5 ›
2019	Cadillac XT5	Platinum	View 2019 XT5 ›
2019	Cadillac XT5	Premium Luxury, 4WD	View 2019 XT5 ›
2019	Cadillac XT5	Premium Luxury, FWD	View 2019 XT5 ›
2020	Cadillac XT5	Sport	View 2020 XT5 ›
2020	Cadillac XT6	Premium Luxury, 4WD	View 2020 XT6 ›
2020	Cadillac XT6	Premium Luxury, FWD	View 2020 XT6 ›
2020	Cadillac XT6	Sport	View 2020 XT6 ›
2021	Cadillac XT5	Sport	View 2021 XT5 ›
2021	Cadillac XT6	Premium Luxury, 4WD	View 2021 XT6 ›
2021	Cadillac XT6	Premium Luxury, FWD	View 2021 XT6 ›
2021	Cadillac XT6	Sport	View 2021 XT6 ›
2022	Cadillac XT5	Sport	View 2022 XT5 ›
2022	Cadillac XT6	Premium Luxury, 4WD	View 2022 XT6 ›
2022	Cadillac XT6	Premium Luxury, FWD	View 2022 XT6 ›
2022	Cadillac XT6	Sport	View 2022 XT6 ›
2023	Cadillac XT5	Sport	View 2023 XT5 ›
2023	Cadillac XT6	Premium Luxury, FWD	View 2023 XT6 ›
2023	Cadillac XT6	Premium Luxury, 4WD	View 2023 XT6 ›
2023	Cadillac XT6	Sport	View 2023 XT6 ›
2024	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2024 XT5 ›
2024	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2024 XT5 ›
2024	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2024 XT5 ›
2024	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2024 XT5 ›
2024	Cadillac XT5	Sport	View 2024 XT5 ›
2024	Cadillac XT6	Premium Luxury, 4WD	View 2024 XT6 ›
2024	Cadillac XT6	Premium Luxury, FWD	View 2024 XT6 ›
2024	Cadillac XT6	Sport	View 2024 XT6 ›
2025	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, 4WD	View 2025 XT5 ›
2025	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, 4WD	View 2025 XT5 ›
2025	Cadillac XT5	Premium Luxury, 3.6L Eng VIN S, FWD	View 2025 XT5 ›
2025	Cadillac XT5	Sport	View 2025 XT5 ›
2025	Cadillac XT6	Premium Luxury, 4WD	View 2025 XT6 ›
2025	Cadillac XT6	Premium Luxury, FWD	View 2025 XT6 ›
2025	Cadillac XT6	Sport	View 2025 XT6 ›
2025	Cadillac XT5	Premium Luxury, 2.0L Eng VIN 4, FWD	View 2025 XT5 ›
2019	Chevrolet Blazer	Premier, 4WD	View 2019 Blazer ›
2019	Chevrolet Blazer	Premier, FWD	View 2019 Blazer ›
2019	Chevrolet Blazer	RS, 4WD	View 2019 Blazer ›
2019	Chevrolet Blazer	RS, FWD	View 2019 Blazer ›
2020	Chevrolet Blazer	RS, 4WD	View 2020 Blazer ›
2020	Chevrolet Blazer	Premier, 4WD	View 2020 Blazer ›
2020	Chevrolet Blazer	RS, FWD	View 2020 Blazer ›
2020	Chevrolet Blazer	Premier, FWD	View 2020 Blazer ›
2021	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, 4WD	View 2021 Blazer ›
2021	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, FWD	View 2021 Blazer ›
2021	Chevrolet Blazer	RS, FWD	View 2021 Blazer ›
2021	Chevrolet Blazer	Premier, 3.6L Eng VIN S, 4WD	View 2021 Blazer ›
2021	Chevrolet Blazer	Premier, 3.6L Eng VIN S, FWD	View 2021 Blazer ›
2021	Chevrolet Blazer	RS, 4WD	View 2021 Blazer ›
2022	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, 4WD	View 2022 Blazer ›
2022	Chevrolet Blazer	Premier, 3.6L Eng VIN S, 4WD	View 2022 Blazer ›
2022	Chevrolet Blazer	Premier, 3.6L Eng VIN S, FWD	View 2022 Blazer ›
2022	Chevrolet Blazer	RS, 4WD	View 2022 Blazer ›
2022	Chevrolet Blazer	RS, FWD	View 2022 Blazer ›
2022	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, FWD	View 2022 Blazer ›
2023	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, 4WD	View 2023 Blazer ›
2023	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, FWD	View 2023 Blazer ›
2023	Chevrolet Blazer	Premier, 3.6L Eng VIN S, 4WD	View 2023 Blazer ›
2023	Chevrolet Blazer	Premier, 3.6L Eng VIN S, FWD	View 2023 Blazer ›
2023	Chevrolet Blazer	RS, FWD	View 2023 Blazer ›
2023	Chevrolet Blazer	RS, 4WD	View 2023 Blazer ›
2024	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, FWD	View 2024 Blazer ›
2024	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, 4WD	View 2024 Blazer ›
2024	Chevrolet Blazer	Premier, 3.6L Eng VIN S, FWD	View 2024 Blazer ›
2024	Chevrolet Blazer	RS, 4WD	View 2024 Blazer ›
2024	Chevrolet Blazer	RS, FWD	View 2024 Blazer ›
2024	Chevrolet Blazer	Premier, 3.6L Eng VIN S, 4WD	View 2024 Blazer ›
2025	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, 4WD	View 2025 Blazer ›
2025	Chevrolet Blazer	Premier, 2.0L Eng VIN 4, FWD	View 2025 Blazer ›
2025	Chevrolet Blazer	Premier, 3.6L Eng VIN S, 4WD	View 2025 Blazer ›
2025	Chevrolet Blazer	RS, FWD	View 2025 Blazer ›
2025	Chevrolet Blazer	RS, 4WD	View 2025 Blazer ›
2025	Chevrolet Blazer	Premier, 3.6L Eng VIN S, FWD	View 2025 Blazer ›
2020	Infiniti QX60	Luxe, AWD	View 2020 QX60 ›
2020	Infiniti QX60	Luxe, FWD	View 2020 QX60 ›
2016	Lexus RX 350	F Sport	View 2016 RX 350 ›
2016	Lexus RX 450h	F Sport	View 2016 RX 450h ›
2017	Lexus RX 350	F Sport, AWD	View 2017 RX 350 ›
2017	Lexus RX 350	F Sport, FWD	View 2017 RX 350 ›
2017	Lexus RX 450h	F Sport	View 2017 RX 450h ›
2018	Lexus RX 350	F Sport, AWD	View 2018 RX 350 ›
2018	Lexus RX 450h	F Sport	View 2018 RX 450h ›
2018	Lexus RX 350	F Sport, FWD	View 2018 RX 350 ›
2019	Lexus RX 350	F Sport, FWD	View 2019 RX 350 ›
2019	Lexus RX 350	F Sport, AWD	View 2019 RX 350 ›
2019	Lexus RX 450h	F Sport	View 2019 RX 450h ›
2020	Lexus RX 450h	F Sport	View 2020 RX 450h ›
2020	Lexus RX 350	F Sport, FWD	View 2020 RX 350 ›
2020	Lexus RX 350	F Sport, AWD	View 2020 RX 350 ›
2021	Lexus RX 350	F Sport, AWD	View 2021 RX 350 ›
2021	Lexus RX 350	F Sport, FWD	View 2021 RX 350 ›
2021	Lexus RX 450h	F Sport	View 2021 RX 450h ›
2021	Lexus RX 350	Base, AWD	View 2021 RX 350 ›
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 350	F Sport, FWD	View 2022 RX 350 ›
2022	Lexus RX 450h	F Sport	View 2022 RX 450h ›
2022	Lexus RX 350L	AWD	View 2022 RX 350L ›
2022	Lexus RX 350	F Sport, AWD	View 2022 RX 350 ›
2022	Lexus RX 450hL	RX 450hL	View 2022 RX 450hL ›
2013	Nissan Pathfinder	Platinum, 4WD	View 2013 Pathfinder ›
2013	Nissan Pathfinder	Platinum, FWD	View 2013 Pathfinder ›
2014	Nissan Pathfinder	Platinum Hybrid, 4WD	View 2014 Pathfinder ›
2014	Nissan Pathfinder	Platinum, 4WD	View 2014 Pathfinder ›
2014	Nissan Pathfinder	Platinum Hybrid, FWD	View 2014 Pathfinder ›
2014	Nissan Pathfinder	Platinum, FWD	View 2014 Pathfinder ›
2015	Nissan Murano	Platinum, AWD	View 2015 Murano ›
2015	Nissan Murano	Platinum, FWD	View 2015 Murano ›
2015	Nissan Pathfinder	Platinum, 4WD	View 2015 Pathfinder ›
2015	Nissan Pathfinder	Platinum, FWD	View 2015 Pathfinder ›
2016	Nissan Murano	Platinum Hybrid, AWD	View 2016 Murano ›
2016	Nissan Murano	Platinum, AWD	View 2016 Murano ›
2016	Nissan Murano	Platinum, FWD	View 2016 Murano ›
2016	Nissan Murano	Platinum Hybrid, FWD	View 2016 Murano ›
2016	Nissan Pathfinder	Platinum, 4WD	View 2016 Pathfinder ›
2016	Nissan Pathfinder	Platinum, FWD	View 2016 Pathfinder ›
2017	Nissan Murano	Platinum, AWD	View 2017 Murano ›
2017	Nissan Murano	Platinum, FWD	View 2017 Murano ›
2017	Nissan Pathfinder	Platinum, 4WD	View 2017 Pathfinder ›
2017	Nissan Pathfinder	Platinum, FWD	View 2017 Pathfinder ›
2018	Nissan Murano	Platinum, AWD	View 2018 Murano ›
2018	Nissan Murano	Platinum, FWD	View 2018 Murano ›
2018	Nissan Murano	SL, AWD	View 2018 Murano ›
2018	Nissan Murano	SL, FWD	View 2018 Murano ›
2018	Nissan Pathfinder	Platinum, 4WD	View 2018 Pathfinder ›
2018	Nissan Pathfinder	Platinum, FWD	View 2018 Pathfinder ›
2019	Nissan Murano	Platinum, FWD	View 2019 Murano ›
2019	Nissan Murano	Platinum, AWD	View 2019 Murano ›
2019	Nissan Murano	SL, FWD	View 2019 Murano ›
2019	Nissan Murano	SL, AWD	View 2019 Murano ›
2019	Nissan Pathfinder	Platinum, 4WD	View 2019 Pathfinder ›
2019	Nissan Pathfinder	Platinum, FWD	View 2019 Pathfinder ›
2020	Nissan Murano	Platinum, 4WD	View 2020 Murano ›
2020	Nissan Murano	Platinum, FWD	View 2020 Murano ›
2020	Nissan Murano	SL, 4WD	View 2020 Murano ›
2020	Nissan Murano	SL, FWD	View 2020 Murano ›
2020	Nissan Pathfinder	Platinum, FWD	View 2020 Pathfinder ›
2020	Nissan Pathfinder	Platinum, 4WD	View 2020 Pathfinder ›
2021	Nissan Murano	Platinum, FWD	View 2021 Murano ›
2021	Nissan Murano	Platinum, 4WD	View 2021 Murano ›
2021	Nissan Murano	SL, 4WD	View 2021 Murano ›
2021	Nissan Murano	SL, FWD	View 2021 Murano ›