225/50R17 tire size
A 225/50R17 tire stands 25.86 inches tall overall, on a 17-inch wheel, with a 112.5 mm sidewall and 225 mm of tread across. It turns roughly 780 times per mile.
- Overall diameter
- 25.86″
- 656.8 mm
- Sidewall height
- 112.5 mm
- 50% of 225 mm
- Circumference
- 81.2″
- 2,063 mm
- Revs per mile
- 780
- 485 per km
Reading the number
225 / 50 R 17 │ │ └─ rim diameter, 17 inches │ └──── aspect ratio, sidewall is 50% of width └──────── tread width, 225 mm sidewall = 225 × 0.50 = 112.5 mm diameter = (17 × 25.4) + (2 × 112.5) = 656.8 mm
Sizes that can replace 225/50R17
One rim step away, sorted by how close the rolling diameter stays.
Questions
›What does 225/50R17 mean?
225 is the tread width in millimetres. 50 is the aspect ratio, so the sidewall is 50% of 225 mm, or 112.5 mm. R means radial construction, and 17 is the wheel diameter in inches.
›How tall is a 225/50R17 tire?
25.86 inches, or 656.8 mm overall. That is the 17-inch rim plus a 112.5 mm sidewall at the top and another at the bottom.
›How many revolutions per mile does 225/50R17 do?
About 780 revolutions per mile, from a rolling circumference of 81.2 inches. Speedometers and odometers are calibrated against this figure, which is why changing size shifts both.
›What tires can replace 225/50R17?
Sizes within 3% of its rolling diameter and one rim step away, such as 245/40R18, 205/60R16, 215/60R16. Each is compared in full below.
Comparing against a size not listed? Open the calculator.