145/80R13 Tire Size in Inches and Millimeters

145/80R13 tires have a diameter of 22.1" (562 mm), a tread width of 5.7" (145 mm), and a wheel diameter of 13" (330.2 mm).The sidewall of the tire is 4.6" (116 mm), and the tire's circumference is 69.4" (1764.7 mm). This means a 145/80R13 tire will make make 913 revolutions per mile, or 567 revolutions per kilometer.

145/80R13 Tire Front
5.7"
22.1"
145/80R13 Tire Side
Tire Circumference
69.4"
13"
4.6"
913 Revs/Mile
SpecInchesMetric
Diameter22.1"562 mm
Width5.7"145 mm
Wheel13"330.2 mm
Sidewall4.6"116 mm
Circum69.4"1764.7 mm
Revolutions913 per mile567 per km

What Does 145/80R13 Mean?

The tire size 145/80R13 is a common size used on many trucks, SUVs, and other larger vehicles.

Here is what each part of the size designation represents:

  • 145: This number represents the width of the tire in millimeters. In this case, the tire is 145 millimeters wide.
  • 80: This number represents the aspect ratio of the tire, which is the height of the tire's sidewall as a percentage of its width. In this case, the sidewall height is 80% of the tire's width.
  • R: This letter indicates the tire's construction type. “R” stands for radial construction, which is the most common type of tire construction today.
  • 13: This number represents the diameter of the wheel that the tire is designed to fit on, in inches. In this case, the tire is designed to fit on a 13-inch wheel.

145/80R13 tire size meaning

How To Convert 145/80R13 Into Inches

The 145/80R13 conversion is fairly simple. The first number in the tire size, 145, represents the width of the tire in millimeters. To convert this to inches, we divide 145 by 25.4 (since there are 25.4 millimeters in an inch). This gives us approximately 5.7 inches.

The second number in the tire size, 80, represents the aspect ratio or the height of the tire as a percentage of its width. To calculate the height in inches, we multiply 5.7 by 0.80, which gives us approximately 4.6 inches.

Finally, the last number in the tire size, 13, represents the diameter of the wheel rim in inches. Therefore, the tire size 145/80R13 can be expressed in inches as roughly 5.7 inches wide, 4.6 inches tall, and designed to fit a 13-inch wheel rim.

Frequently Asked Questions About 145/80R13 Tires

How tall is a 145/80R13 tire?

A 145/80R13 tire has an approximate height, also known as the overall diameter, of 22.1 inches (562 mm). This height can vary slightly depending on the brand and model of the tire, as well as the amount of air pressure in the tire.

How wide is a 145/80R13 tire?

A 145/80R13 tire has a width of approximately 5.7 inches (145 millimeters). The width of the tire is the first number in the tire size designation, which in this case is “145”. It’s important to note that the actual width of the tire may vary slightly depending on the brand and model of the tire, and the width may also be affected by the amount of air pressure in the tire.

Alternate 145/80R13 Replacement Tire Sizes

Upsizing your wheels or tires? Replacement tires must be within 3% of the diametor of the original tire. The following sizes fall within that range - click on any size to see detailed info about that tire and wheel combination.

SizeDiameterWidthWheel
115/70R1622.4"568 mm16 mm
125/70R1521.9"557 mm15 mm
135/60R1622.4"568 mm16 mm
135/70R1522.5"571 mm15 mm
135/80R1321.5"546 mm13 mm
135/80R1422.5"572 mm14 mm
145/65R1522.4"569 mm15 mm
145/80R1322.1"562 mm13 mm
155/60R1522.3"567 mm15 mm
155/65R1422"558 mm14 mm
155/70R1321.6"548 mm13 mm
155/70R1422.6"574 mm14 mm
155/80R1221.8"553 mm12 mm
155/80R1322.8"578 mm13 mm
165/40R1722.2"564 mm17 mm
165/45R1621.8"554 mm16 mm
165/50R1521.5"547 mm15 mm
165/50R1622.5"572 mm16 mm
165/55R1522.2"563 mm15 mm
165/60R1421.8"554 mm14 mm
165/65R1422.4"570 mm14 mm
165/70R1322.1"562 mm13 mm
165/75R1322.8"578 mm13 mm
175/50R1521.9"557 mm15 mm
175/55R1522.6"573 mm15 mm
175/60R1422.3"566 mm14 mm
175/65R1322"558 mm13 mm
175/70R1322.7"576 mm13 mm
185/45R1521.5"547 mm15 mm
185/50R1522.3"567 mm15 mm
185/55R1422"560 mm14 mm
185/60R1321.7"552 mm13 mm
185/60R1422.8"578 mm14 mm
185/65R1322.4"570 mm13 mm
195/40R1622.1"562 mm16 mm
195/45R1521.9"557 mm15 mm
195/50R1522.7"577 mm15 mm
195/55R1422.4"570 mm14 mm
195/60R1322.2"564 mm13 mm
205/40R1622.4"570 mm16 mm
205/45R1522.2"565 mm15 mm
205/50R1422.1"562 mm14 mm
205/60R1322.7"576 mm13 mm
215/35R1621.9"556 mm16 mm
215/40R1521.8"553 mm15 mm
215/40R1622.8"578 mm16 mm
215/45R1522.6"575 mm15 mm
215/50R1321.5"546 mm13 mm
225/45R1422"558 mm14 mm
225/50R1321.9"556 mm13 mm
235/50R1322.3"566 mm13 mm
245/35R1521.8"553 mm15 mm
245/35R1622.8"578 mm16 mm
245/40R1522.7"577 mm15 mm
245/50R1322.7"576 mm13 mm
275/35R1522.6"573 mm15 mm