235/70R15 Tire Size in Inches and Millimeters

235/70R15 tires have a diameter of 28" (711 mm), a tread width of 9.3" (235 mm), and a wheel diameter of 15" (381 mm).The sidewall of the tire is 6.5" (165 mm), and the tire's circumference is 87.9" (2232.5 mm). This means a 235/70R15 tire will make make 721 revolutions per mile, or 448 revolutions per kilometer.

235/70R15 Tire Front
235/70R15 Tire Side
Tire Circumference
721 Revs/Mile
Diameter28"711 mm
Width9.3"235 mm
Wheel15"381 mm
Sidewall6.5"165 mm
Circum87.9"2232.5 mm
Revolutions721 per mile448 per km

What Does 235/70R15 Mean?

The tire size 235/70R15 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.
  • 70: 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 70% 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.
  • 15: 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 15-inch wheel.

235/70R15 tire size meaning

How To Convert 235/70R15 Into Inches

The 235/70R15 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, 70, 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 0.70, which gives us approximately 6.5 inches.

Finally, the last number in the tire size, 15, represents the diameter of the wheel rim in inches. Therefore, the tire size 235/70R15 can be expressed in inches as roughly 9.3 inches wide, 6.5 inches tall, and designed to fit a 15-inch wheel rim.

BFGoodrich Radial T/A All Season Car Tire for Passenger Cars, P235/70R15 102S
BFGoodrich Radial T/A All Season Car Tire for Passenger Cars, P235/70R15 102S
Superb lateral stability and steering response ensuring optimal performance in all seasons
Hankook Kinergy ST H735 all_ Season Radial Tire-235/70R15 103T
Hankook Kinergy ST H735 all_ Season Radial Tire-235/70R15 103T
Tread wear : 70, 000 miles; Road Hazard; Speed Rating: T; Long Mileage; Comfortable Ride; Fit Type: Vehicle Specific
Cooper Cobra Radial G/T All-Season P235/70R15 102T Tire
Cooper Cobra Radial G/T All-Season P235/70R15 102T Tire
Treadwear warranty: 40,000 miles; All-Season Classic Tire; Retains characteristic look of a classic muscle car

Frequently Asked Questions About 235/70R15 Tires

How tall is a 235/70R15 tire?

A 235/70R15 tire has an approximate height, also known as the overall diameter, of 28 inches (711 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 235/70R15 tire?

A 235/70R15 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.

Alternate 235/70R15 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.

145/65R2027.4"696 mm20 mm
145/80R1928.1"715 mm19 mm
145/85R1827.7"703 mm18 mm
145/90R1727.3"694 mm17 mm
155/60R2027.3"694 mm20 mm
155/65R2028"710 mm20 mm
155/70R1927.6"701 mm19 mm
155/80R1827.8"705 mm18 mm
155/80R1928.8"731 mm19 mm
155/85R1828.4"721 mm18 mm
155/90R1728"712 mm17 mm
165/60R2027.8"706 mm20 mm
165/80R1727.4"696 mm17 mm
165/90R1728.7"730 mm17 mm
175/55R2027.6"700 mm20 mm
175/60R1927.3"693 mm19 mm
195/50R2027.7"704 mm20 mm
195/75R1627.5"698 mm16 mm
195/80R1527.3"693 mm15 mm
195/80R1628.3"718 mm16 mm
205/60R1827.7"703 mm18 mm
205/65R1727.5"698 mm17 mm
205/70R1627.3"694 mm16 mm
205/75R1628.1"714 mm16 mm
215/45R2027.6"702 mm20 mm
215/55R1827.3"693 mm18 mm
215/60R1727.2"690 mm17 mm
215/65R1728"712 mm17 mm
215/70R1627.9"708 mm16 mm
215/75R1527.7"703 mm15 mm
215/75R1628.7"728 mm16 mm
215/80R1528.5"725 mm15 mm
225/30R2227.4"695 mm22 mm
225/45R2028"710 mm20 mm
225/55R1827.8"705 mm18 mm
225/55R1928.8"731 mm19 mm
225/60R1727.6"702 mm17 mm
225/60R1828.6"727 mm18 mm
225/65R1627.5"698 mm16 mm
225/65R1728.5"724 mm17 mm
225/70R1527.4"697 mm15 mm
225/70R1628.4"722 mm16 mm
225/75R1427.3"694 mm14 mm
225/75R1528.3"719 mm15 mm
235/30R2227.6"701 mm22 mm
235/35R2127.4"697 mm21 mm
235/40R2027.4"696 mm20 mm
235/45R1927.4"695 mm19 mm
235/45R2028.3"720 mm20 mm
235/50R1827.3"693 mm18 mm
235/50R1928.3"719 mm19 mm
235/55R1727.2"690 mm17 mm
235/55R1828.1"715 mm18 mm
235/60R1728.1"714 mm17 mm
235/65R1628"712 mm16 mm
235/70R1528"711 mm15 mm
245/25R2428.8"732 mm24 mm
245/30R2227.8"707 mm22 mm
245/35R2127.8"705 mm21 mm
245/35R2228.8"731 mm22 mm
245/40R2027.7"704 mm20 mm
245/40R2128.7"729 mm21 mm
245/45R1927.7"703 mm19 mm
245/45R2028.7"728 mm20 mm
245/50R1827.7"703 mm18 mm
245/50R1928.7"729 mm19 mm
245/55R1727.6"702 mm17 mm
245/55R1828.6"727 mm18 mm
245/60R1627.6"700 mm16 mm
245/60R1728.6"726 mm17 mm
245/65R1527.5"699 mm15 mm
245/70R1427.6"700 mm14 mm
245/70R1528.5"725 mm15 mm
255/30R2228.1"713 mm22 mm
255/35R2128"711 mm21 mm
255/40R2028"712 mm20 mm
255/45R1928.1"713 mm19 mm
255/50R1828.1"713 mm18 mm
255/55R1728"712 mm17 mm
255/60R1628"712 mm16 mm
255/65R1528.1"713 mm15 mm
265/25R2227.2"691 mm22 mm
265/25R2328.2"716 mm23 mm
265/30R2127.3"693 mm21 mm
265/30R2228.3"719 mm22 mm
265/35R2027.3"694 mm20 mm
265/35R2128.3"719 mm21 mm
265/40R1927.4"695 mm19 mm
265/40R2028.3"720 mm20 mm
265/45R1827.4"695 mm18 mm
265/45R1928.4"721 mm19 mm
265/50R1828.5"723 mm18 mm
265/55R1728.5"724 mm17 mm
265/60R1527.5"699 mm15 mm
265/60R1628.5"724 mm16 mm
275/25R2227.4"697 mm22 mm
275/30R2127.5"699 mm21 mm
275/30R2228.5"725 mm22 mm
275/35R2027.6"700 mm20 mm
275/35R2128.5"725 mm21 mm
275/40R1927.7"703 mm19 mm
275/40R2028.7"728 mm20 mm
275/45R1827.8"705 mm18 mm
275/45R1928.8"731 mm19 mm
275/50R1727.9"708 mm17 mm
275/55R1627.9"708 mm16 mm
275/60R1528"711 mm15 mm
285/25R2227.6"701 mm22 mm
285/30R2127.8"705 mm21 mm
285/30R2228.8"731 mm22 mm
285/35R2027.9"708 mm20 mm
285/40R1928"711 mm19 mm
285/45R1828.1"713 mm18 mm
295/25R2227.8"707 mm22 mm
295/30R2128"711 mm21 mm
295/35R2028.1"714 mm20 mm
295/40R1827.3"693 mm18 mm
295/40R1928.3"719 mm19 mm
295/45R1727.5"698 mm17 mm
295/45R1828.5"723 mm18 mm
295/50R1627.6"702 mm16 mm
295/55R1527.8"705 mm15 mm
305/25R2228"711 mm22 mm
305/30R2027.2"692 mm20 mm
305/30R2128.2"717 mm21 mm
305/35R1927.4"697 mm19 mm
305/35R2028.4"722 mm20 mm
305/40R1827.6"701 mm18 mm
305/45R1727.8"706 mm17 mm
305/45R1828.8"731 mm18 mm
315/25R2228.2"717 mm22 mm
315/30R2027.5"698 mm20 mm
315/30R2128.5"723 mm21 mm
315/35R1927.7"703 mm19 mm
315/35R2028.7"728 mm20 mm
315/40R1827.9"709 mm18 mm
315/45R1627.2"690 mm16 mm
315/45R1728.2"716 mm17 mm
325/25R2127.4"695 mm21 mm
325/30R2027.7"704 mm20 mm
325/30R2128.7"729 mm21 mm
325/50R1527.8"707 mm15 mm
335/25R2228.6"727 mm22 mm
335/30R2028"710 mm20 mm
345/30R1927.2"691 mm19 mm
345/30R2028.2"716 mm20 mm
345/35R1827.5"699 mm18 mm
345/35R1928.5"725 mm19 mm
345/40R1727.9"708 mm17 mm
355/25R2128"711 mm21 mm
355/30R1927.4"697 mm19 mm
355/40R1627.2"690 mm16 mm