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P255/45R20

Passenger / P-Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The P255/45R20 tire size features an overall diameter of 29.04 inches, a section width of 10.0 inches (255mm), and rotates 695 times per mile. It is a standard factory tire fitment on 73+ vehicle models including Infiniti QX50.

Shop P255/45R20 Tires on Tire Rack →Buy on Amazon →

Physical Dimensions & Specs

Overall Diameter

29.04"

737.6 mm

Section Width

255 mm

10.04" wide

Sidewall Height

4.52"

114.8 mm (45% aspect)

Revolutions / Mile

695

Circumference: 91.22"

Rim Diameter

20"

Wheel size

Recommended Rim Width

6.4" - 8.9"

Optimal rim width range

Where to Buy & Install P255/45R20 Tires

Looking for P255/45R20 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:

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Direct Home Delivery

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare P255/45R20 against any proposed tire size below:

Popular Comparisons:
Tire 1 (Stock / Base)255/45R20
Overall Height:29.0"
Sidewall:4.5"
Revs/Mile:695
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682

Visual Tire & Wheel Comparison

Tire 129.0" HeightTire 229.6" Height

Speedometer Variance

+1.9%At 60 mph reading, actual speed is 61.1 mph
IndicatedActual SpeedDiff
20 mph20.4 mph+0.4 mph
30 mph30.6 mph+0.6 mph
45 mph45.8 mph+0.8 mph
60 mph61.1 mph+1.1 mph
75 mph76.4 mph+1.4 mph
90 mph91.7 mph+1.7 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:+0.27" ground clearance

Vehicles That Fit P255/45R20 (73+ Models)

Factory standard and optional vehicle fitments utilizing P255/45R20 tires:

YearMake & ModelTrim / VariantLookup Specs
2020Infiniti QX50Essential, 4WDView 2020 QX50 ›
2020Infiniti QX50Essential, FWDView 2020 QX50 ›
2020Infiniti QX50Sensory, 4WDView 2020 QX50 ›
2020Infiniti QX50Autograph, FWDView 2020 QX50 ›
2020Infiniti QX50Autograph, 4WDView 2020 QX50 ›
2020Infiniti QX50Sensory, FWDView 2020 QX50 ›
2021Infiniti QX50Luxe, 4WDView 2021 QX50 ›
2021Infiniti QX50Autograph, 4WDView 2021 QX50 ›
2021Infiniti QX50Autograph, FWDView 2021 QX50 ›
2021Infiniti QX50Luxe, FWDView 2021 QX50 ›
2021Infiniti QX50Sensory, 4WDView 2021 QX50 ›
2021Infiniti QX50Sensory, FWDView 2021 QX50 ›
2022Infiniti QX50AutographView 2022 QX50 ›
2022Infiniti QX50Sensory, 4WDView 2022 QX50 ›
2022Infiniti QX50Luxe, FWDView 2022 QX50 ›
2022Infiniti QX55SensoryView 2022 QX55 ›
2022Infiniti QX50Luxe, 4WDView 2022 QX50 ›
2022Infiniti QX50Sensory, FWDView 2022 QX50 ›
2022Infiniti QX55EssentialView 2022 QX55 ›
2022Infiniti QX55LuxeView 2022 QX55 ›
2023Infiniti QX50AutographView 2023 QX50 ›
2023Infiniti QX50Sensory, 4WDView 2023 QX50 ›
2023Infiniti QX50Sensory, FWDView 2023 QX50 ›
2023Infiniti QX50Sport, FWDView 2023 QX50 ›
2023Infiniti QX50Sport, 4WDView 2023 QX50 ›
2023Infiniti QX55LuxeView 2023 QX55 ›
2023Infiniti QX55SensoryView 2023 QX55 ›
2023Infiniti QX55EssentialView 2023 QX55 ›
2024Infiniti QX50AutographView 2024 QX50 ›
2024Infiniti QX50Sport, 4WDView 2024 QX50 ›
2024Infiniti QX50Sensory, 4WDView 2024 QX50 ›
2024Infiniti QX50Sensory, FWDView 2024 QX50 ›
2024Infiniti QX55EssentialView 2024 QX55 ›
2024Infiniti QX50Sport, FWDView 2024 QX50 ›
2024Infiniti QX55SensoryView 2024 QX55 ›
2024Infiniti QX55LuxeView 2024 QX55 ›
2025Infiniti QX55EssentialView 2025 QX55 ›
2025Infiniti QX50SportView 2025 QX50 ›
2025Infiniti QX55LuxeView 2025 QX55 ›
2025Infiniti QX55SensoryView 2025 QX55 ›
2010Lincoln MKTEcoBoostView 2010 MKT ›
2011Lincoln MKTEcoBoostView 2011 MKT ›
2012Lincoln MKTEcoBoostView 2012 MKT ›
2022Mitsubishi OutlanderSE Launch Edition, AWDView 2022 Outlander ›
2022Mitsubishi OutlanderES, FWDView 2022 Outlander ›
2022Mitsubishi OutlanderSE Launch Edition, FWDView 2022 Outlander ›
2022Mitsubishi OutlanderES, AWDView 2022 Outlander ›
2022Mitsubishi OutlanderSEL Launch EditionView 2022 Outlander ›
2022Mitsubishi OutlanderSE, AWDView 2022 Outlander ›
2022Mitsubishi OutlanderSEL, FWDView 2022 Outlander ›
2022Mitsubishi OutlanderSEL, AWDView 2022 Outlander ›
2022Mitsubishi OutlanderSE, FWDView 2022 Outlander ›
2023Mitsubishi OutlanderSE, AWDView 2023 Outlander ›
2023Mitsubishi OutlanderSE, FWDView 2023 Outlander ›
2023Mitsubishi OutlanderSEL, AWDView 2023 Outlander ›
2023Mitsubishi OutlanderSEL, FWDView 2023 Outlander ›
2023Mitsubishi Outlander PHEVSEView 2023 Outlander PHEV ›
2023Mitsubishi Outlander PHEVSELView 2023 Outlander PHEV ›
2024Mitsubishi OutlanderSEL, FWDView 2024 Outlander ›
2024Mitsubishi OutlanderSE, AWDView 2024 Outlander ›
2024Mitsubishi OutlanderSE, FWDView 2024 Outlander ›
2024Mitsubishi OutlanderSEL, AWDView 2024 Outlander ›
2024Mitsubishi Outlander PHEVSELView 2024 Outlander PHEV ›
2024Mitsubishi Outlander PHEVSEL Black EditionView 2024 Outlander PHEV ›
2024Mitsubishi Outlander PHEVPlatinum EditionView 2024 Outlander PHEV ›
2024Mitsubishi Outlander PHEVSEView 2024 Outlander PHEV ›
2025Mitsubishi OutlanderSE, AWDView 2025 Outlander ›
2025Mitsubishi OutlanderSE, FWDView 2025 Outlander ›
2025Mitsubishi OutlanderSEL, FWDView 2025 Outlander ›
2025Mitsubishi Outlander PHEVSEView 2025 Outlander PHEV ›
2025Mitsubishi OutlanderSEL, AWDView 2025 Outlander ›
2025Mitsubishi Outlander PHEVSELView 2025 Outlander PHEV ›
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