42X15R17 conversion to metric size

42X15R17 tires are 42.0″ tall, have a section width of 15.0″, and fit wheels with a diameter of 17. The circumference is 131.9″ that translates into 480 revolutions per mile. As a rule, they can be mounted on the wheels with 17″ rim width. In the metric system, the equivalent tire size is 381/83/R17.

What is 42X15R17 in inches?

Tire Diameter:42.0″
Tire Section Width:15.0″
Rim Width Range:17″
Sidewall Height:12.5″

Alternate sizes – Upsizing Wheels or Tires?

What are 42X15R17 close equivalents?

Check out the chart below to find possible alternatives to the 42X15R17 tire size staying within the 3%-range of the tire diameter, allowing to choose wider wheels or tires with smaller sidewalls. A good rule of thumb is to avoid decreasing the diameter of the wheel. If you are not sure about the custom sizes, consult the experts or stick to the factory tire size.

Tire sizeDiameterDifferenceWidthWheel size
Upsizing chart

How to decode 42X15R17 tire size in metric?

Trying to decode the size of the tires? Scroll down the page to learn what all these numbers on the sidewall stand for.

P or LTThe first letter in the string denotes the class. P stands for passenger vehicles, LT is intended for light trucks carrying heavy loads.
381It means the width of the tire is 381 millimeters
83The tire has an aspect ratio of 83. To put it simple, the sidewall height is 83% of the width, so it would be 12.5″.
RR stands for the Radial, a standard construction method for about 99% of tires.
17The tire is designed to fit 17″ rims that are 17 inches in diameter.

Popular questions about 42X15R17 tire size

How wide is a 42X15R17 tire?

The tires of the given size have a section width of 15.0″ inches.

How tall is a 42X15R17 tire?

The height of the following tire size equals 42.0″ inches.

What rims will fit 42X15R17 tires?

For each tire size, often there are several wheel sizes. You can’t put very wide tires on narrow rims or vise versa. You need the rim size of 17″ for 17″ tires.

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