Tire Size 285/45r20 in inches

The tire size 285/45R20 is equivalent to 30.1×11.2R20 in inches, has a diameter of 30.1 inches (764.5 mm), a section width of 11.2 inches (285 mm), a wheel diameter of 20 inches (508 mm), and is approved to be mounted on 9.0 to 10.5 inches (228.6 to 266.7 mm) wide wheels.

285/45r20 in inches

Instantly comprehend intricate measurements in inches and millimeters at a glance using this Table chart.

FeatureInchesMetric
Tire Diameter30.1764.5
Section Width11.2285
Rim Height20508
Sidewall Height5128.3
Circumference94.62401.7
Revolutions670 per mile417 per km
Rim Width Range9.0-10.5228.6 – 266.7

How Tall Is A 285/45R20 Tire?

The tire height of the 285/45R20 tire size is 30.1 inches or 764.5 millimeters. This measurement is also known as the tire diameter or outside diameter, representing the tire’s height when measured from the base of the tire’s tread on the ground to the top across the center.

What Is the 285/45R20 Width In Inches?

The tread width of the 285/45R20 tire size is 11.2 inches or 285 millimeters. This refers to the linear distance across the tread, which determines the contact surface area of the tire with the road. The section width is a critical factor for vehicle stability and traction.

What Is the 285/45R20 Sidewall Height?

The 285/45R20 tire’s sidewall height is approximately 5 inches or 128.3 millimeters. This measurement is the distance from the wheel rim to the outer tread.

Sidewall height impacts ride comfort, as taller sidewalls can absorb more bumps, whereas shorter ones provide better handling.

What Is the 285/45R20 Tire Circumference?

The circumference of the 285/45R20 tire size is 94.6 inches or 2401.7 millimeters. This measurement is the distance around the outer edge of the tire. A tire’s circumference is crucial in calculating speed, distance covered, and fuel consumption.

What Is the 285/45R20 Revolutions Per Mile?

For the 285/45R20 tire size, there are approximately 670 revolutions per mile or 417 revolutions per kilometer. This measurement refers to the number of times a tire revolves in one mile or kilometer. Understanding revolutions per mile is vital in accurate speedometer and odometer readings.

What Is the 285/45R20 Rims Size?

The 285/45R20 tire size, the rim diameter is 20 inches or 508 millimeters. This tire size fits rim widths between 9.0 and 10.5 inches, which are 228.6 to 266.7 millimeters in metric terms. The rim width must accommodate the tire width for optimal performance and safety.

Fitment Guide
This table will guide you on which vehicles can fit the 285/45R20 tire size. Depending on their clearance and suspension system, many SUVs, light trucks, and some sedans may accommodate this tire size.

Brand NameModel
AUDIe-tron S (2020 – 2023), e-tron S Sportback (2020 – 2023), Q7 (2015 – 2023), SQ7 (2016 – 2023), SQ8 e-tron (2023 – 2024), SQ8 Sportback e-tron (2023 – 2024)
DODGEDurango (2004 – 2009)
GMCSierra 1500 (1988 – 1998)
VOLKSWAGENTouareg (2018 – 2023)

Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original equipment tire to maintain accurate speedometer readings, proper vehicle clearance, and suspension geometry.

Tire SizeOverall DiameterDifference
235/50R2029.3″-2.60%
295/40R2029.3″-2.60%
265/45R2029.4″-2.40%
305/40R2029.6″-1.60%
245/50R2029.7″-1.30%
275/45R2029.8″-1.00%
255/50R2030.1″0.00%
235/55R2030.2″0.30%
265/50R2030.5″1.30%
295/45R2030.5″1.30%
305/45R2030.8″2.40%
275/50R2030.9″2.60%

Our Observation
The 285/45R20 tire is popular among SUV and light truck owners due to its balanced attributes. Its wider section width provides excellent traction and stability.

While its relatively tall sidewall height offers comfort and protection for the rims. Ensuring your vehicle’s rim size and clearance can accommodate this tire size is important.

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