265/70R17 tire size
A 265/70R17 tire stands 31.61 inches tall overall, on a 17-inch wheel, with a 185.5 mm sidewall and 265 mm of tread across. It turns roughly 638 times per mile.
- Overall diameter
- 31.61″
- 802.8 mm
- Sidewall height
- 185.5 mm
- 70% of 265 mm
- Circumference
- 99.3″
- 2,522 mm
- Revs per mile
- 638
- 396 per km
Reading the number
265 / 70 R 17 │ │ └─ rim diameter, 17 inches │ └──── aspect ratio, sidewall is 70% of width └──────── tread width, 265 mm sidewall = 265 × 0.70 = 185.5 mm diameter = (17 × 25.4) + (2 × 185.5) = 802.8 mm
Sizes that can replace 265/70R17
One rim step away, sorted by how close the rolling diameter stays.
Questions
›What does 265/70R17 mean?
265 is the tread width in millimetres. 70 is the aspect ratio, so the sidewall is 70% of 265 mm, or 185.5 mm. R means radial construction, and 17 is the wheel diameter in inches.
›How tall is a 265/70R17 tire?
31.61 inches, or 802.8 mm overall. That is the 17-inch rim plus a 185.5 mm sidewall at the top and another at the bottom.
›How many revolutions per mile does 265/70R17 do?
About 638 revolutions per mile, from a rolling circumference of 99.3 inches. Speedometers and odometers are calibrated against this figure, which is why changing size shifts both.
›What tires can replace 265/70R17?
Sizes within 3% of its rolling diameter and one rim step away, such as 265/65R17, 265/60R18. Each is compared in full below.
Comparing against a size not listed? Open the calculator.