What is the diameter of a 255/65R18 tire?

A 255/65R18 tire has an overall diameter of 31.05 inches (788.7mm).

How many revolutions per mile does a 255/65R18 tire make?

A 255/65R18 tire makes approximately 650 revolutions per mile.

What rim width is recommended for 255/65R18 tires?

The recommended wheel rim width for a 255/65R18 tire is 6.4" - 8.9".

255/65R18

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 255/65R18 tire size features an overall diameter of 31.05 inches, a section width of 10.0 inches (255mm), and rotates 650 times per mile. It is a standard factory tire fitment on 116+ vehicle models including Buick Enclave.

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Physical Dimensions & Specs

Overall Diameter

31.05"

788.7 mm

Section Width

255 mm

10.04" wide

Sidewall Height

6.53"

165.9 mm (65% aspect)

Revolutions / Mile

650

Circumference: 97.55"

Rim Diameter

18"

Wheel size

Recommended Rim Width

6.4" - 8.9"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 255/65R18 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)255/65R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:31.1"

Sidewall:6.5"

Revs/Mile:650

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

-4.8%At 60 mph reading, actual speed is 57.1 mph

Indicated	Actual Speed	Diff
20 mph	19.0 mph	-1.0 mph
30 mph	28.6 mph	-1.4 mph
45 mph	42.9 mph	-2.1 mph
60 mph	57.1 mph	-2.9 mph
75 mph	71.4 mph	-3.6 mph
90 mph	85.7 mph	-4.3 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:-0.74" lower ground clearance

Vehicles That Fit 255/65R18 (116+ Models)

Factory standard and optional vehicle fitments utilizing 255/65R18 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2018	Buick Enclave	Essence, AWD	View 2018 Enclave ›
2018	Buick Enclave	Essence, FWD	View 2018 Enclave ›
2018	Buick Enclave	Premium, AWD	View 2018 Enclave ›
2018	Buick Enclave	Premium, FWD	View 2018 Enclave ›
2018	Buick Enclave	Base	View 2018 Enclave ›
2019	Buick Enclave	Essence, AWD	View 2019 Enclave ›
2019	Buick Enclave	Essence, FWD	View 2019 Enclave ›
2019	Buick Enclave	Preferred	View 2019 Enclave ›
2019	Buick Enclave	Premium, AWD	View 2019 Enclave ›
2019	Buick Enclave	Premium, FWD	View 2019 Enclave ›
2020	Buick Enclave	Essence, FWD	View 2020 Enclave ›
2020	Buick Enclave	Premium, FWD	View 2020 Enclave ›
2020	Buick Enclave	Essence, AWD	View 2020 Enclave ›
2020	Buick Enclave	Premium, AWD	View 2020 Enclave ›
2020	Buick Enclave	Preferred	View 2020 Enclave ›
2021	Buick Enclave	Essence, AWD	View 2021 Enclave ›
2021	Buick Enclave	Essence, FWD	View 2021 Enclave ›
2021	Buick Enclave	Premium, FWD	View 2021 Enclave ›
2021	Buick Enclave	Premium, AWD	View 2021 Enclave ›
2021	Buick Enclave	Preferred	View 2021 Enclave ›
2022	Buick Enclave	Essence, AWD	View 2022 Enclave ›
2022	Buick Enclave	Essence, FWD	View 2022 Enclave ›
2022	Buick Enclave	Premium, FWD	View 2022 Enclave ›
2022	Buick Enclave	Premium, AWD	View 2022 Enclave ›
2023	Buick Enclave	Essence, AWD	View 2023 Enclave ›
2023	Buick Enclave	Essence, FWD	View 2023 Enclave ›
2023	Buick Enclave	Premium, AWD	View 2023 Enclave ›
2023	Buick Enclave	Premium, FWD	View 2023 Enclave ›
2024	Buick Enclave	Essence, AWD	View 2024 Enclave ›
2024	Buick Enclave	Essence, FWD	View 2024 Enclave ›
2024	Buick Enclave	Premium, FWD	View 2024 Enclave ›
2024	Buick Enclave	Premium, AWD	View 2024 Enclave ›
2018	Chevrolet Traverse	L	View 2018 Traverse ›
2018	Chevrolet Traverse	LS, 4WD	View 2018 Traverse ›
2018	Chevrolet Traverse	LT, 4WD	View 2018 Traverse ›
2018	Chevrolet Traverse	LS, FWD	View 2018 Traverse ›
2018	Chevrolet Traverse	LT, FWD	View 2018 Traverse ›
2019	Chevrolet Traverse	L	View 2019 Traverse ›
2019	Chevrolet Traverse	LS, 4WD	View 2019 Traverse ›
2019	Chevrolet Traverse	LT, FWD	View 2019 Traverse ›
2019	Chevrolet Traverse	LS, FWD	View 2019 Traverse ›
2019	Chevrolet Traverse	LT, 4WD	View 2019 Traverse ›
2020	Chevrolet Traverse	L	View 2020 Traverse ›
2020	Chevrolet Traverse	LS, 4WD	View 2020 Traverse ›
2020	Chevrolet Traverse	LS, FWD	View 2020 Traverse ›
2020	Chevrolet Traverse	LT, 4WD	View 2020 Traverse ›
2020	Chevrolet Traverse	LT, FWD	View 2020 Traverse ›
2021	Chevrolet Traverse	L	View 2021 Traverse ›
2021	Chevrolet Traverse	LS, 4WD	View 2021 Traverse ›
2021	Chevrolet Traverse	LS, FWD	View 2021 Traverse ›
2021	Chevrolet Traverse	LT, 4WD	View 2021 Traverse ›
2021	Chevrolet Traverse	LT, FWD	View 2021 Traverse ›
2022	Chevrolet Traverse	LS, 4WD	View 2022 Traverse ›
2022	Chevrolet Traverse	LT, 4WD	View 2022 Traverse ›
2022	Chevrolet Traverse	LS, FWD	View 2022 Traverse ›
2022	Chevrolet Traverse	LT, FWD	View 2022 Traverse ›
2023	Chevrolet Traverse	LS, 4WD	View 2023 Traverse ›
2023	Chevrolet Traverse	LS, FWD	View 2023 Traverse ›
2023	Chevrolet Traverse	LT, 4WD	View 2023 Traverse ›
2023	Chevrolet Traverse	LT, FWD	View 2023 Traverse ›
2024	Chevrolet Traverse	LS, 4WD	View 2024 Traverse ›
2024	Chevrolet Traverse	LS, FWD	View 2024 Traverse ›
2024	Chevrolet Traverse	LT, 4WD	View 2024 Traverse ›
2024	Chevrolet Traverse	LT, FWD	View 2024 Traverse ›
2024	Chevrolet Traverse Limited	LS, 4WD	View 2024 Traverse Limited ›
2024	Chevrolet Traverse Limited	LS, FWD	View 2024 Traverse Limited ›
2024	Chevrolet Traverse Limited	LT, 4WD	View 2024 Traverse Limited ›
2024	Chevrolet Traverse Limited	LT, FWD	View 2024 Traverse Limited ›
2025	Chevrolet Traverse	LT, 4WD	View 2025 Traverse ›
2025	Chevrolet Traverse	LT, FWD	View 2025 Traverse ›
2020	Ford Explorer	Base, 2.3L Eng VIN H, 4WD	View 2020 Explorer ›
2020	Ford Explorer	Base, 2.3L Eng VIN H, RWD	View 2020 Explorer ›
2020	Ford Explorer	Base, 3.3L Eng VIN B	View 2020 Explorer ›
2020	Ford Explorer	XLT, RWD	View 2020 Explorer ›
2020	Ford Explorer	XLT, 4WD	View 2020 Explorer ›
2021	Ford Explorer	Base, 2.3L Eng VIN H, 4WD	View 2021 Explorer ›
2021	Ford Explorer	Base, 2.3L Eng VIN H, RWD	View 2021 Explorer ›
2021	Ford Explorer	Base, 3.3L Eng VIN B	View 2021 Explorer ›
2021	Ford Explorer	XLT, 4WD	View 2021 Explorer ›
2021	Ford Explorer	XLT, RWD	View 2021 Explorer ›
2022	Ford Explorer	Base, 2.3L Eng VIN H, 4WD	View 2022 Explorer ›
2022	Ford Explorer	Base, 2.3L Eng VIN H, RWD	View 2022 Explorer ›
2022	Ford Explorer	Base, 3.3L Eng VIN B	View 2022 Explorer ›
2022	Ford Explorer	XLT, 4WD	View 2022 Explorer ›
2022	Ford Explorer	XLT, RWD	View 2022 Explorer ›
2023	Ford Explorer	Base, 2.3L Eng VIN H, 4WD	View 2023 Explorer ›
2023	Ford Explorer	Base, 2.3L Eng VIN H, RWD	View 2023 Explorer ›
2023	Ford Explorer	Base, 3.3L Eng VIN B	View 2023 Explorer ›
2023	Ford Explorer	XLT, 4WD	View 2023 Explorer ›
2023	Ford Explorer	XLT, RWD	View 2023 Explorer ›
2024	Ford Explorer	Base, 2.3L Eng VIN H, 4WD	View 2024 Explorer ›
2024	Ford Explorer	Base, 3.3L Eng VIN B	View 2024 Explorer ›
2024	Ford Explorer	Base, 2.3L Eng VIN H, RWD	View 2024 Explorer ›
2024	Ford Explorer	XLT, RWD	View 2024 Explorer ›
2024	Ford Explorer	XLT, 4WD	View 2024 Explorer ›
2024	Ford Ranger	Lariat, 2.3L Eng VIN H, 4WD	View 2024 Ranger ›
2024	Ford Ranger	Lariat, 2.7L Eng VIN P, 4WD	View 2024 Ranger ›
2024	Ford Ranger	Lariat, 2.3L Eng VIN H, RWD	View 2024 Ranger ›
2024	Ford Ranger	Lariat, 2.7L Eng VIN P, RWD	View 2024 Ranger ›
2025	Ford Explorer	Active, 4WD	View 2025 Explorer ›
2025	Ford Explorer	Active, RWD	View 2025 Explorer ›
2025	Ford Ranger	Lariat, 2.3L Eng VIN H, 4WD	View 2025 Ranger ›
2025	Ford Ranger	Lariat, 2.3L Eng VIN H, RWD	View 2025 Ranger ›
2025	Ford Ranger	Lariat, 2.7L Eng VIN P, 4WD	View 2025 Ranger ›
2025	Ford Ranger	Lariat, 2.7L Eng VIN P, RWD	View 2025 Ranger ›
2024	Toyota Grand Highlander	Hybrid XLE, 2.5L Eng VIN B	View 2024 Grand Highlander ›
2024	Toyota Grand Highlander	Hybrid XLE, 2.5L Eng VIN C	View 2024 Grand Highlander ›
2024	Toyota Grand Highlander	XLE, 4WD	View 2024 Grand Highlander ›
2024	Toyota Grand Highlander	XLE, FWD	View 2024 Grand Highlander ›
2025	Toyota Grand Highlander	Hybrid LE	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	XLE, 4WD	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	LE, FWD	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	Hybrid XLE, 2.5L Eng VIN B	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	LE, 4WD	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	Hybrid XLE, 2.5L Eng VIN C	View 2025 Grand Highlander ›
2025	Toyota Grand Highlander	XLE, FWD	View 2025 Grand Highlander ›