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.

Feature Inches Metric
Tire Diameter 30.1 764.5
Section Width 11.2 285
Rim Height 20 508
Sidewall Height 5 128.3
Circumference 94.6 2401.7
Revolutions 670 per mile 417 per km
Rim Width Range 9.0-10.5 228.6 – 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 Name Model
AUDI e-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)
DODGE Durango (2004 – 2009)
GMC Sierra 1500 (1988 – 1998)
VOLKSWAGEN Touareg (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 Size Overall Diameter Difference
235/50R20 29.3″ (744 mm) -2.6%
295/40R20 29.3″ (744 mm) -2.6%
265/45R20 29.4″ (746 mm) -2.4%
305/40R20 29.6″ (752 mm) -1.6%
245/50R20 29.7″ (754 mm) -1.3%
275/45R20 29.8″ (756 mm) -1.0%
255/50R20 30.1″ (764 mm) 0.0%
235/55R20 30.2″ (766 mm) 0.3%
265/50R20 30.5″ (774 mm) 1.3%
295/45R20 30.5″ (774 mm) 1.3%
305/45R20 30.8″ (782 mm) 2.4%
275/50R20 30.9″ (784 mm) 2.6%

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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