The short answer
265/70R17 = 31.6 × 10.4 R17: 31.6 inches tall and 10.4 inches wide. Going the other way, a 33 inch tire on a 17 inch wheel is about 255/80R17 (33.1 in) among 11 calculated sizes within ½ inch.
How to convert
| Part of 265/70R17 | Meaning | In inches |
|---|---|---|
| 265 | section width, mm | 10.4 in wide |
| 70 | sidewall = 70% of the width | 7.30 in |
| R17 | radial, 17 in wheel | 17 in |
| Overall height | 17 + 2 × sidewall | 31.61 in |
For the reverse, there is no single answer: many widths and aspect ratios land near 33 inches. The converter lists the calculated options on your wheel, closest first. They are calculated combinations, so confirm a tire is actually made in that size. Popular guides: 33 inch, 35 inch, 31 inch.
Always confirm the wheel width range for the tire, clearance at full steering lock and suspension travel, and the load index and speed rating for your vehicle. See how to read a tire size, the load index chart and the speed rating chart.
FAQ
How do I convert a metric tire size to inches?
Height = wheel diameter + 2 × (width in mm × aspect ratio ÷ 100) ÷ 25.4. 265/70R17 is 31.6 in tall and 10.4 in wide.
What size is a 33 inch tire?
On a 17 inch wheel the closest calculated metric size is 255/80R17 (33.1 in). On other wheels the answer is different: pick your wheel in the converter.
Is 33x12.50R15 a metric size?
No. It is a flotation size: 33 inches tall, 12.5 inches wide, 15 inch wheel. The converter shows the nearest calculated metric sizes.
Are all the converted sizes real tires?
No. They are calculated from standard widths and aspect ratios. Check that a tire exists in that size and that it suits your wheel width and load needs.