33X12.5R16.5 conversion to metric size

33X12.5R16.5 tires are 33.0″ tall, have a section width of 12.5″, and fit wheels with a diameter of 165. The circumference is 103.6″ that translates into 611 revolutions per mile. As a rule, they can be mounted on the wheels with 16.5″ rim width. In the metric system, the equivalent tire size is 318/66/R165.

What is 33X12.5R16.5 in inches?

Tire Diameter:33.0″
Tire Section Width:12.5″
Rim Width Range:16.5″
Sidewall Height:8.2″
Circumference:103.6″
Revs/Mile:611

Alternate sizes – Upsizing Wheels or Tires?

What are 33X12.5R16.5 close equivalents?

Check out the chart below to find possible alternatives to the 33X12.5R16.5 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
292/71/R16533.0″0%11.5″165
356/59/R16533.0″0%14.0″165
368/57/R16533.0″0%14.5″165
394/53/R16533.0″0%15.5″165
Upsizing chart

How to decode 33X12.5R16.5 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.
318It means the width of the tire is 318 millimeters
66The tire has an aspect ratio of 66. To put it simple, the sidewall height is 66% of the width, so it would be 8.2″.
RR stands for the Radial, a standard construction method for about 99% of tires.
165The tire is designed to fit 16.5″ rims that are 165 inches in diameter.

Popular questions about 33X12.5R16.5 tire size

How wide is a 33X12.5R16.5 tire?

The tires of the given size have a section width of 12.5″ inches.

How tall is a 33X12.5R16.5 tire?

The height of the following tire size equals 33.0″ inches.

What rims will fit 33X12.5R16.5 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 16.5″ for 16.5″ tires.

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