Aspect ratio is simply identified as a percentage of the section height divided by the section width. In the example below, the aspect ratio of the tire is 70 percent, so the section height of tire will be 129.5mm. The higher the aspect ratio, the taller the tire sidewall.
What is a 245 tire equal to?
Rim Size P-Metric Size
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16 Inch 225/75R16
235/85R16 31.7 inches
245/75R16 30.5 inches
265/70R16 30.6 inches
How many inches wide is a 245 tire?
Size, MM Width, Inches Sidewall height (from rim bead seat to top of tread) × 2.
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230 mm 9.06” 9.97”
235 mm 9.25” 10.18”
240 mm 9.45” 10.40”
245 mm 9.65” 10.62”
Are 265 tires the same as 33s?
In metric sizes, the '75' (or whatever) is a percentage of the tread width and refers to the height of the tyre from the rim to the running surface. 75% of 265mm is a tyre 198 mm high, between the rim and the running surface. In US notation, the '33' (or whatever) is the overall diameter of the tyre, in inches.
What is a 33 inch tire?
The 33” refers to the width of the tire (285) multiplied by the height percentage of the sidewall (75), in millimeters, x2 because there are two sidewalls, divided by 25.4 (inches) plus the wheel size in inches (16”). Phew!!! That's a mouthful and a lot to digest at once so let's break it down into a simple formula.
265. This number indicates that your tire has a width of 265 millimeters. 75. This number means that your tire has an aspect ratio of 75%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 75% of the width.
What is the 245 in a tire size?
245: The width of the tire, from sidewall to sidewall, in millimeters. A 245 is 245 millimeters, or 24.5 centimeters, wide. The tread width is actually somewhat smaller than the tire's actual width. 45: Aspect Ratio.
How many inches tall is a 245 tire?
Size, MM Width, Inches Sidewall height (from rim bead seat to top of tread) × 2.
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240 mm 9.45” 14.17”
245 mm 9.65” 14.48”
250 mm 9.84” 14.76”
255 mm 10.04” 15.06”