LT285/50R20 in Inches

Understanding the dimensions of the LT285/50R20 tire size in both metric and imperial units of measurement is an essential part of tire maintenance and replacement. Let us take a closer look at every important aspect of the LT285/50R20 tire size to understand what these numbers represent and how they may affect your vehicle's performance.

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What is LT285/50R20 in inches?

When we convert LT285/50R20 to inches, it is equivalent to 31.2x11.2R20 tire size in the high flotation system.

LT285/50R20 Section Width
LT285/50R20 Tire Side
Tire Circumference
647 Revs/Mile
Metric Inches
Tire Diameter 793 mm 31.2"
Tread Width 285 mm 11.2"
Rim Diameter 508 mm 20"
Sidewall Height 142.5 mm 5.6"
Circumference 2490 mm 98"
Revolutions 402 per km 647 per mile

How wide is a LT285/50R20 tire?

Tire width, also known as section width, is a measurement in millimeters that indicates the width of a tire from one sidewall to the other. It is the first number provided in a tire's size specifications. LT285/50R20 tire has a width of 11.2 inches or 285 mm.

A greater tire width can increase the tire's contact patch with the road, potentially improving grip and handling. However, wider tires can also increase rolling resistance, which could negatively impact fuel efficiency.

Tire Width
Tread width: 11.2"

How tall is a LT285/50R20 tire?

Tire height, also known as the tire's diameter or overall diameter, is the measurement from the ground to the top of the tire. It's essentially the distance from one side of the tire to the other, passing through the center, when it's correctly inflated and not under load. LT285/50R20 tire has a diameter or height of 31.2 inches or 793 mm.

Tire Diameter
Tire height: 31.2"

LT285/50R20 Tire Sidewall Height

Tire sidewall height, also known as the tire's aspect ratio, is the measurement of the height of the tire's cross-section or the height of the tire from the rim to the tread. It is typically represented as a percentage of the tire's width. LT285/50R20 tire has a sidewall height of 5.6 inches or 142.5 mm.

Sidewall height (also known as tire profile) can greatly affect a tire's driving characteristics. Lower profile tires (30 or 35 series) often provide better handling but can give a harsher ride, while higher profile tires (65 or 70 series) generally provide a smoother ride but with less precise handling.

Tire Sidewall Height
Sidewall height: 5.6"

What size rim fits a LT285/50R20 tire?

The rim diameter refers to the diameter of the wheel on which a tire is mounted. It is the distance from one edge of the rim to the opposite edge, passing through the center of the wheel. LT285/50R20 tire can be mounted on 20 inch wheels.

The rim diameter is crucial not only for fitting the tire properly but also plays a role in determining the overall performance of the vehicle, including its handling and ride quality.

Rim Diameter
Rim diameter: 20"

LT285/50R20 Tire Circumference

Tire circumference refers to the distance around the outer edge of a tire. It is the measurement of the entire circumference or perimeter of the tire when it is inflated and mounted on a wheel. LT285/50R20 tire has a circumference of 98 inches or 2490 mm.

Tire Circumference
Tire circumference: 98"

How many revolutions does a LT285/50R20 tire make?

Tire revolutions refer to the number of complete rotations a tire makes while the vehicle is in motion. It is a measure of the distance covered by the tire. LT285/50R20 tire completes 647 revolutions per mile or 402 revolutions per kilometer.

Tire revolutions are often used in various calculations related to vehicle dynamics, such as determining the distance traveled, estimating fuel consumption, or calculating the speed of the vehicle based on the rotation of the tires. Tire revolutions can also be tracked or monitored by certain vehicle systems, such as the anti-lock braking system (ABS) or the vehicle's onboard computer, for various purposes.

Tire Revolutions
Tire revolutions: 647 per mile

More 20-inch Tire Conversions

All listed guides, data and/or calculations are for informational purposes only. does not warrant or make any representations regarding the accuracy of or the results of the use of this information.