195/65R15 tire size
A 195/65R15 tire stands 24.98 inches tall overall, on a 15-inch wheel, with a 126.8 mm sidewall and 195 mm of tread across. It turns roughly 807 times per mile.
- Overall diameter
- 24.98″
- 634.5 mm
- Sidewall height
- 126.8 mm
- 65% of 195 mm
- Circumference
- 78.5″
- 1,993 mm
- Revs per mile
- 807
- 502 per km
Reading the number
195 / 65 R 15 │ │ └─ rim diameter, 15 inches │ └──── aspect ratio, sidewall is 65% of width └──────── tread width, 195 mm sidewall = 195 × 0.65 = 126.75 mm diameter = (15 × 25.4) + (2 × 126.75) = 634.5 mm
Sizes that can replace 195/65R15
One rim step away, sorted by how close the rolling diameter stays.
Questions
›What does 195/65R15 mean?
195 is the tread width in millimetres. 65 is the aspect ratio, so the sidewall is 65% of 195 mm, or 126.8 mm. R means radial construction, and 15 is the wheel diameter in inches.
›How tall is a 195/65R15 tire?
24.98 inches, or 634.5 mm overall. That is the 15-inch rim plus a 126.8 mm sidewall at the top and another at the bottom.
›How many revolutions per mile does 195/65R15 do?
About 807 revolutions per mile, from a rolling circumference of 78.5 inches. Speedometers and odometers are calibrated against this figure, which is why changing size shifts both.
›What tires can replace 195/65R15?
Sizes within 3% of its rolling diameter and one rim step away, such as 205/55R16, 205/60R16, 215/60R16. Each is compared in full below.
Comparing against a size not listed? Open the calculator.