What is the diameter of a 255/50R20 tire?

A 255/50R20 tire has an overall diameter of 30.04 inches (763.0mm).

How many revolutions per mile does a 255/50R20 tire make?

A 255/50R20 tire makes approximately 671 revolutions per mile.

What rim width is recommended for 255/50R20 tires?

The recommended wheel rim width for a 255/50R20 tire is 6.4" - 8.9".

255/50R20

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 255/50R20 tire size features an overall diameter of 30.04 inches, a section width of 10.0 inches (255mm), and rotates 671 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Acura MDX.

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Physical Dimensions & Specs

Overall Diameter

30.04"

763.0 mm

Section Width

255 mm

10.04" wide

Sidewall Height

5.02"

127.5 mm (50% aspect)

Revolutions / Mile

671

Circumference: 94.37"

Rim Diameter

20"

Wheel size

Recommended Rim Width

6.4" - 8.9"

Optimal rim width range

Where to Buy & Install 255/50R20 Tires

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Direct Home Delivery

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 255/50R20 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)255/50R20

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:30.0"

Sidewall:5.0"

Revs/Mile:671

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	73.8 mph	-1.2 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 255/50R20 (150+ Models)

Factory standard and optional vehicle fitments utilizing 255/50R20 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2022	Acura MDX	Base	View 2022 MDX ›
2022	Acura MDX	SH-AWD	View 2022 MDX ›
2023	Acura MDX	Base	View 2023 MDX ›
2023	Acura MDX	SH-AWD	View 2023 MDX ›
2024	Acura MDX	Base	View 2024 MDX ›
2024	Acura MDX	SH-AWD	View 2024 MDX ›
2025	Acura MDX	Base	View 2025 MDX ›
2025	Acura MDX	SH-AWD	View 2025 MDX ›
2019	Audi e-tron Quattro	Premium Plus	View 2019 e-tron Quattro ›
2019	Audi e-tron Quattro	Prestige	View 2019 e-tron Quattro ›
2020	Audi e-tron Sportback	Premium Plus	View 2020 e-tron Sportback ›
2021	Audi e-tron Quattro	Premium	View 2021 e-tron Quattro ›
2021	Audi e-tron Quattro	Prestige	View 2021 e-tron Quattro ›
2021	Audi e-tron Sportback	Premium	View 2021 e-tron Sportback ›
2021	Audi e-tron Quattro	Premium Plus	View 2021 e-tron Quattro ›
2021	Audi e-tron Sportback	Premium Plus	View 2021 e-tron Sportback ›
2021	Audi e-tron Sportback	Prestige	View 2021 e-tron Sportback ›
2022	Audi e-tron Quattro	Premium	View 2022 e-tron Quattro ›
2022	Audi e-tron Quattro	Premium Plus	View 2022 e-tron Quattro ›
2022	Audi e-tron S	Premium Plus	View 2022 e-tron S ›
2022	Audi e-tron S	Prestige	View 2022 e-tron S ›
2022	Audi e-tron S Sportback	Premium Plus	View 2022 e-tron S Sportback ›
2022	Audi e-tron S Sportback	Prestige	View 2022 e-tron S Sportback ›
2022	Audi e-tron Sportback	Premium	View 2022 e-tron Sportback ›
2022	Audi e-tron Sportback	Premium Plus	View 2022 e-tron Sportback ›
2022	Audi e-tron Sportback	Prestige	View 2022 e-tron Sportback ›
2023	Audi e-tron Quattro	Premium	View 2023 e-tron Quattro ›
2023	Audi e-tron Quattro	Premium Plus	View 2023 e-tron Quattro ›
2023	Audi e-tron S	Premium Plus	View 2023 e-tron S ›
2023	Audi e-tron S	Prestige	View 2023 e-tron S ›
2023	Audi e-tron S Sportback	Premium Plus	View 2023 e-tron S Sportback ›
2023	Audi e-tron S Sportback	Prestige	View 2023 e-tron S Sportback ›
2023	Audi e-tron Sportback	Premium	View 2023 e-tron Sportback ›
2023	Audi e-tron Sportback	Premium Plus	View 2023 e-tron Sportback ›
2024	Audi Q8 e-tron	Premium	View 2024 Q8 e-tron ›
2024	Audi Q8 e-tron	Premium Plus	View 2024 Q8 e-tron ›
2024	Audi Q8 e-tron	Prestige	View 2024 Q8 e-tron ›
2024	Audi Q8 e-tron Sportback	Premium	View 2024 Q8 e-tron Sportback ›
2024	Audi Q8 e-tron Sportback	Premium Plus	View 2024 Q8 e-tron Sportback ›
2024	Audi Q8 e-tron Sportback	Prestige	View 2024 Q8 e-tron Sportback ›
2024	Audi SQ8 e-tron	Premium Plus	View 2024 SQ8 e-tron ›
2024	Audi SQ8 e-tron	Prestige	View 2024 SQ8 e-tron ›
2024	Audi SQ8 e-tron Sportback	Prestige	View 2024 SQ8 e-tron Sportback ›
2024	Audi SQ8 e-tron Sportback	Premium Plus	View 2024 SQ8 e-tron Sportback ›
2025	Audi SQ6 e-tron	Premium	View 2025 SQ6 e-tron ›
2025	Audi SQ6 e-tron	Premium Plus	View 2025 SQ6 e-tron ›
2025	Audi SQ6 e-tron	Prestige	View 2025 SQ6 e-tron ›
2016	Ford Explorer	Limited, 2.3L Eng VIN H, AWD	View 2016 Explorer ›
2016	Ford Explorer	Limited, 3.5L Eng VIN 8, AWD	View 2016 Explorer ›
2016	Ford Explorer	Limited, 2.3L Eng VIN H, FWD	View 2016 Explorer ›
2016	Ford Explorer	Platinum	View 2016 Explorer ›
2016	Ford Explorer	Sport	View 2016 Explorer ›
2016	Ford Explorer	Limited, 3.5L Eng VIN 8, FWD	View 2016 Explorer ›
2017	Ford Explorer	Limited, 2.3L Eng VIN H, AWD	View 2017 Explorer ›
2017	Ford Explorer	Limited, 2.3L Eng VIN H, FWD	View 2017 Explorer ›
2017	Ford Explorer	Limited, 3.5L Eng VIN 8, AWD	View 2017 Explorer ›
2017	Ford Explorer	Limited, 3.5L Eng VIN 8, FWD	View 2017 Explorer ›
2017	Ford Explorer	Platinum	View 2017 Explorer ›
2017	Ford Explorer	Sport	View 2017 Explorer ›
2018	Ford Explorer	Platinum	View 2018 Explorer ›
2018	Ford Explorer	Limited, 2.3L Eng VIN H, FWD	View 2018 Explorer ›
2018	Ford Explorer	Limited, 3.5L Eng VIN 8, FWD	View 2018 Explorer ›
2018	Ford Explorer	Sport	View 2018 Explorer ›
2018	Ford Explorer	Limited, 3.5L Eng VIN 8, AWD	View 2018 Explorer ›
2018	Ford Explorer	Limited, 2.3L Eng VIN H, AWD	View 2018 Explorer ›
2019	Ford Explorer	Limited, 2.3L Eng VIN H, AWD	View 2019 Explorer ›
2019	Ford Explorer	Limited, 3.5L Eng VIN 8, AWD	View 2019 Explorer ›
2019	Ford Explorer	Limited, 2.3L Eng VIN H, FWD	View 2019 Explorer ›
2019	Ford Explorer	Limited, 3.5L Eng VIN 8, FWD	View 2019 Explorer ›
2019	Ford Explorer	Platinum	View 2019 Explorer ›
2019	Ford Explorer	Sport	View 2019 Explorer ›
2023	Honda Pilot	Elite	View 2023 Pilot ›
2023	Honda Pilot	Sport, AWD	View 2023 Pilot ›
2023	Honda Pilot	Sport, FWD	View 2023 Pilot ›
2023	Honda Pilot	Touring, AWD	View 2023 Pilot ›
2023	Honda Pilot	Touring, FWD	View 2023 Pilot ›
2024	Honda Pilot	Elite	View 2024 Pilot ›
2024	Honda Pilot	Sport, AWD	View 2024 Pilot ›
2024	Honda Pilot	Touring, AWD	View 2024 Pilot ›
2024	Honda Pilot	Sport, FWD	View 2024 Pilot ›
2024	Honda Pilot	Touring, FWD	View 2024 Pilot ›
2025	Honda Pilot	Black Edition	View 2025 Pilot ›
2025	Honda Pilot	Elite	View 2025 Pilot ›
2025	Honda Pilot	Sport, AWD	View 2025 Pilot ›
2025	Honda Pilot	Sport, FWD	View 2025 Pilot ›
2025	Honda Pilot	Touring, AWD	View 2025 Pilot ›
2025	Honda Pilot	Touring, FWD	View 2025 Pilot ›
2022	Infiniti QX60	Autograph, AWD	View 2022 QX60 ›
2022	Infiniti QX60	Autograph, FWD	View 2022 QX60 ›
2022	Infiniti QX60	Luxe, AWD	View 2022 QX60 ›
2022	Infiniti QX60	Luxe, FWD	View 2022 QX60 ›
2022	Infiniti QX60	Sensory, AWD	View 2022 QX60 ›
2022	Infiniti QX60	Sensory, FWD	View 2022 QX60 ›
2023	Infiniti QX60	Sensory, AWD	View 2023 QX60 ›
2023	Infiniti QX60	Autograph, AWD	View 2023 QX60 ›
2023	Infiniti QX60	Luxe, FWD	View 2023 QX60 ›
2023	Infiniti QX60	Autograph, FWD	View 2023 QX60 ›
2023	Infiniti QX60	Luxe, AWD	View 2023 QX60 ›
2023	Infiniti QX60	Sensory, FWD	View 2023 QX60 ›
2024	Infiniti QX60	Autograph, FWD	View 2024 QX60 ›
2024	Infiniti QX60	Autograph, AWD	View 2024 QX60 ›
2024	Infiniti QX60	Luxe, FWD	View 2024 QX60 ›
2024	Infiniti QX60	Sensory, AWD	View 2024 QX60 ›
2024	Infiniti QX60	Sensory, FWD	View 2024 QX60 ›
2024	Infiniti QX60	Luxe, AWD	View 2024 QX60 ›
2025	Infiniti QX60	Autograph, AWD	View 2025 QX60 ›
2025	Infiniti QX60	Autograph, FWD	View 2025 QX60 ›
2025	Infiniti QX60	Luxe, AWD	View 2025 QX60 ›
2025	Infiniti QX60	Luxe, FWD	View 2025 QX60 ›
2025	Infiniti QX60	Sensory, AWD	View 2025 QX60 ›
2025	Infiniti QX60	Sensory, FWD	View 2025 QX60 ›
2017	Jaguar F-Pace	R-Sport, 2.0L Eng VIN N	View 2017 F-Pace ›
2017	Jaguar F-Pace	S	View 2017 F-Pace ›
2017	Jaguar F-Pace	R-Sport, 3.0L Eng VIN V	View 2017 F-Pace ›
2018	Jaguar F-Pace	Portfolio, 2.0L Eng VIN X	View 2018 F-Pace ›
2018	Jaguar F-Pace	Portfolio, 3.0L Eng VIN V	View 2018 F-Pace ›
2018	Jaguar F-Pace	R-Sport, 2.0L Eng VIN N	View 2018 F-Pace ›
2018	Jaguar F-Pace	R-Sport, 2.0L Eng VIN X	View 2018 F-Pace ›
2018	Jaguar F-Pace	S	View 2018 F-Pace ›
2018	Jaguar F-Pace	R-Sport, 3.0L Eng VIN V	View 2018 F-Pace ›
2019	Jaguar F-Pace	Portfolio	View 2019 F-Pace ›
2019	Jaguar F-Pace	R-Sport, 2.0L Eng VIN N	View 2019 F-Pace ›
2019	Jaguar F-Pace	S	View 2019 F-Pace ›
2019	Jaguar F-Pace	R-Sport, 2.0L Eng VIN X	View 2019 F-Pace ›
2020	Jaguar F-Pace	300 Sport	View 2020 F-Pace ›
2020	Jaguar F-Pace	Checkered Flag	View 2020 F-Pace ›
2020	Jaguar F-Pace	Portfolio	View 2020 F-Pace ›
2020	Jaguar F-Pace	R-Sport	View 2020 F-Pace ›
2020	Jaguar F-Pace	S	View 2020 F-Pace ›
2006	Land Rover Range Rover	Supercharged	View 2006 Range Rover ›
2007	Land Rover Range Rover	Supercharged	View 2007 Range Rover ›
2008	Land Rover Range Rover	Supercharged	View 2008 Range Rover ›
2009	Land Rover Range Rover	Supercharged	View 2009 Range Rover ›
2010	Land Rover Range Rover	Supercharged	View 2010 Range Rover ›
2011	Land Rover Range Rover	HSE, 5.0 E	View 2011 Range Rover ›
2011	Land Rover Range Rover	Supercharged	View 2011 Range Rover ›
2011	Land Rover Range Rover	HSE, 5.0 D	View 2011 Range Rover ›
2012	Land Rover Range Rover	HSE Lux, 5.0L Eng VIN E	View 2012 Range Rover ›
2012	Land Rover Range Rover	HSE Lux, 5.0L Eng VIN D	View 2012 Range Rover ›
2012	Land Rover Range Rover	Supercharged	View 2012 Range Rover ›
2018	Land Rover Range Rover Velar	R-Dynamic SE, 2.0L Eng VIN N	View 2018 Range Rover Velar ›
2018	Land Rover Range Rover Velar	R-Dynamic SE, 2.0L Eng VIN X	View 2018 Range Rover Velar ›
2018	Land Rover Range Rover Velar	R-Dynamic SE, 3.0L Eng VIN V	View 2018 Range Rover Velar ›
2018	Land Rover Range Rover Velar	SE	View 2018 Range Rover Velar ›
2019	Land Rover Range Rover Velar	R-Dynamic SE, 2.0L Eng VIN X	View 2019 Range Rover Velar ›
2019	Land Rover Range Rover Velar	R-Dynamic SE, 3.0L Eng VIN V	View 2019 Range Rover Velar ›
2022	Nissan Pathfinder	Platinum, 4WD	View 2022 Pathfinder ›
2022	Nissan Pathfinder	Platinum, FWD	View 2022 Pathfinder ›
2023	Nissan Pathfinder	Platinum, 4WD	View 2023 Pathfinder ›
2023	Nissan Pathfinder	Platinum, FWD	View 2023 Pathfinder ›