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215/65R16 tire size

A 215/65R16 tire stands 27 inches tall overall, on a 16-inch wheel, with a 139.8 mm sidewall and 215 mm of tread across. It turns roughly 747 times per mile.

Overall diameter
27.00″
685.9 mm
Sidewall height
139.8 mm
65% of 215 mm
Circumference
84.8″
2,155 mm
Revs per mile
747
464 per km

Reading the number

215 / 65 R 16
   │   │  └─ rim diameter, 16 inches
   │   └──── aspect ratio, sidewall is 65% of width
   └──────── tread width, 215 mm

sidewall  = 215 × 0.65 = 139.75 mm
diameter  = (16 × 25.4) + (2 × 139.75) = 685.9 mm

Sizes that can replace 215/65R16

One rim step away, sorted by how close the rolling diameter stays.

Questions

What does 215/65R16 mean?

215 is the tread width in millimetres. 65 is the aspect ratio, so the sidewall is 65% of 215 mm, or 139.8 mm. R means radial construction, and 16 is the wheel diameter in inches.

How tall is a 215/65R16 tire?

27 inches, or 685.9 mm overall. That is the 16-inch rim plus a 139.8 mm sidewall at the top and another at the bottom.

How many revolutions per mile does 215/65R16 do?

About 747 revolutions per mile, from a rolling circumference of 84.8 inches. Speedometers and odometers are calibrated against this figure, which is why changing size shifts both.

What tires can replace 215/65R16?

Sizes within 3% of its rolling diameter and one rim step away, such as 225/60R17, 215/55R17, 215/60R16. Each is compared in full below.

Comparing against a size not listed? Open the calculator.