235/60R13 Tire Size in Inches and Millimeters

235/60R13 tires have a diameter of 24.1" (612 mm), a tread width of 9.3" (235 mm), and a wheel diameter of 13" (330.2 mm).The sidewall of the tire is 5.6" (141 mm), and the tire's circumference is 75.7" (1921.7 mm). This means a 235/60R13 tire will make make 837 revolutions per mile, or 520 revolutions per kilometer.

235/60R13 Tire Front
9.3"
24.1"
235/60R13 Tire Side
Tire Circumference
75.7"
13"
5.6"
837 Revs/Mile
SpecInchesMetric
Diameter24.1"612 mm
Width9.3"235 mm
Wheel13"330.2 mm
Sidewall5.6"141 mm
Circum75.7"1921.7 mm
Revolutions837 per mile520 per km

What Does 235/60R13 Mean?

The tire size 235/60R13 is a common size used on many trucks, SUVs, and other larger vehicles.

Here is what each part of the size designation represents:

  • 235: This number represents the width of the tire in millimeters. In this case, the tire is 235 millimeters wide.
  • 60: 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 60% 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.

235/60R13 tire size meaning

How To Convert 235/60R13 Into Inches

The 235/60R13 conversion is fairly simple. The first number in the tire size, 235, represents the width of the tire in millimeters. To convert this to inches, we divide 235 by 25.4 (since there are 25.4 millimeters in an inch). This gives us approximately 9.3 inches.

The second number in the tire size, 60, represents the aspect ratio or the height of the tire as a percentage of its width. To calculate the height in inches, we multiply 9.3 by 0.60, which gives us approximately 5.6 inches.

Finally, the last number in the tire size, 13, represents the diameter of the wheel rim in inches. Therefore, the tire size 235/60R13 can be expressed in inches as roughly 9.3 inches wide, 5.6 inches tall, and designed to fit a 13-inch wheel rim.

Frequently Asked Questions About 235/60R13 Tires

How tall is a 235/60R13 tire?

A 235/60R13 tire has an approximate height, also known as the overall diameter, of 24.1 inches (612 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 235/60R13 tire?

A 235/60R13 tire has a width of approximately 9.3 inches (235 millimeters). The width of the tire is the first number in the tire size designation, which in this case is “235”. 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.

Understanding Tire Speed Ratings

When choosing the right tires for your vehicle, understanding the speed rating is crucial. But what exactly is a speed rating, and why does it matter?

What is a Tire Speed Rating?

A tire's speed rating indicates the maximum speed a tire can safely sustain over time. It's a manufacturer's assurance of tire performance, marked by a letter on the tire's sidewall. This rating is determined under controlled laboratory conditions and is part of a broader standard established by industry entities like the European Tyre and Rim Technical Organisation (ETRTO) and the U.S. Department of Transportation.

Common Speed Ratings Explained

  1. P-Rated: Up to 94 mph - Suitable for smaller sedans or light-duty vehicles.
  2. Q-Rated: Up to 100 mph - Often found on SUVs and light trucks with consistent highway use.
  3. R-Rated: Up to 106 mph - Typically for medium-duty trucks and vans.
  4. S-Rated: Up to 112 mph - Common for family sedans and larger vehicles with moderate performance.
  5. T-Rated: Up to 118 mph - Optimal for family vehicles, including minivans and some coupes.

Why is the Speed Rating Important?

The speed rating is not just about how fast you can legally drive; it's about safety and performance:
  • Ensures Safety: It guarantees that the tire can handle certain speeds without overheating and failing, which can prevent blowouts.
  • Optimizes Performance: Higher ratings often indicate better handling characteristics, important for maintaining vehicle stability.
  • Legal and Insurance Considerations: Matching the speed rating suggested by your vehicle manufacturer can be essential for insurance and warranty purposes.
When choosing tires, always refer to your vehicle’s manual to ensure compatibility. Remember, fitting tires with a lower speed rating than recommended can compromise safety and performance, while higher ratings might not provide extra benefits unless you frequently drive at high speeds. By understanding these nuances, you can make an informed choice that suits your driving habits while keeping safety a top priority.

Alternate 235/60R13 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
125/60R1823.9"607 mm18 mm
125/70R1723.9"608 mm17 mm
125/80R1623.9"606 mm16 mm
125/85R1624.3"618 mm16 mm
125/90R1523.9"607 mm15 mm
135/60R1824.4"619 mm18 mm
135/70R1623.5"596 mm16 mm
135/70R1724.5"622 mm17 mm
135/80R1523.5"597 mm15 mm
135/80R1624.5"622 mm16 mm
135/90R1423.6"600 mm14 mm
135/90R1524.6"625 mm15 mm
155/70R1523.6"599 mm15 mm
155/80R1423.8"604 mm14 mm
155/80R1524.8"629 mm15 mm
165/65R1523.4"595 mm15 mm
165/80R1323.4"594 mm13 mm
165/80R1424.4"620 mm14 mm
175/45R1824.2"615 mm18 mm
175/55R1623.5"598 mm16 mm
175/55R1724.6"624 mm17 mm
175/60R1624.3"616 mm16 mm
175/65R1524"609 mm15 mm
175/70R1423.7"602 mm14 mm
175/70R1524.7"627 mm15 mm
175/75R1424.3"618 mm14 mm
175/80R1324"610 mm13 mm
185/50R1724.3"618 mm17 mm
185/55R1624"610 mm16 mm
185/60R1523.7"603 mm15 mm
185/60R1624.7"628 mm16 mm
185/65R1423.5"596 mm14 mm
185/65R1524.4"621 mm15 mm
185/70R1424.3"616 mm14 mm
185/80R1324.6"626 mm13 mm
195/45R1723.9"608 mm17 mm
195/50R1623.7"602 mm16 mm
195/50R1724.7"628 mm17 mm
195/55R1523.4"595 mm15 mm
195/55R1624.4"620 mm16 mm
195/60R1524.2"615 mm15 mm
195/65R1424"610 mm14 mm
195/70R1323.8"604 mm13 mm
195/70R1424.8"630 mm14 mm
205/35R1823.7"601 mm18 mm
205/40R1723.5"596 mm17 mm
205/40R1824.4"621 mm18 mm
205/45R1724.3"616 mm17 mm
205/50R1624.1"612 mm16 mm
205/55R1523.9"607 mm15 mm
205/60R1423.7"602 mm14 mm
205/60R1524.7"627 mm15 mm
205/65R1424.5"622 mm14 mm
205/70R1324.3"618 mm13 mm
215/35R1823.9"607 mm18 mm
215/40R1723.8"604 mm17 mm
215/40R1824.8"629 mm18 mm
215/45R1623.6"600 mm16 mm
215/45R1724.6"626 mm17 mm
215/50R1523.5"597 mm15 mm
215/50R1624.5"622 mm16 mm
215/55R1524.3"617 mm15 mm
215/60R1424.2"614 mm14 mm
225/30R1924.4"619 mm19 mm
225/35R1824.2"615 mm18 mm
225/40R1724.1"612 mm17 mm
225/45R1623.9"608 mm16 mm
225/50R1523.9"607 mm15 mm
225/55R1423.8"604 mm14 mm
225/55R1524.8"629 mm15 mm
225/60R1424.6"626 mm14 mm
235/30R1823.6"599 mm18 mm
235/30R1924.6"625 mm19 mm
235/35R1824.4"621 mm18 mm
235/40R1724.4"620 mm17 mm
235/50R1524.3"617 mm15 mm
235/60R1324.1"612 mm13 mm
245/30R1823.8"605 mm18 mm
245/35R1723.8"604 mm17 mm
245/35R1824.8"629 mm18 mm
245/40R1724.7"628 mm17 mm
245/45R1624.6"626 mm16 mm
245/50R1423.7"602 mm14 mm
245/50R1524.7"627 mm15 mm
255/30R1824.1"611 mm18 mm
255/45R1524.1"611 mm15 mm
265/30R1824.3"617 mm18 mm
265/35R1724.3"618 mm17 mm
265/50R1424.5"622 mm14 mm
275/35R1724.6"624 mm17 mm
285/30R1824.8"629 mm18 mm
285/40R1524"609 mm15 mm
345/35R1524.5"623 mm15 mm