Tyre sizes·165/70R14
165/70R14
Overall diameter 586.6 mm

165/70R14 — 586.6 mm tall, and what it swaps with

165/70R14 is 165 mm wide with a 70% sidewall on a 14-inch wheel. That sidewall is 115.5 mm, so the tyre stands 586.6 mm tall and turns 542.6 times per kilometre.

Section width
165 mm
Aspect ratio
70 %
Wheel size
14 in (355.6 mm)
Sidewall height
115.5 mm
Overall diameter
586.6 mm (23.09 in)
Circumference
1842.9 mm
Turns per km
542.6

Sizes you can swap to

Only sizes whose overall diameter stays within 3% are listed. A different diameter covers a different distance per turn, and that gap becomes speedometer error.

Same profile, different width

Other sizes for this wheel

How the code reads

The 205 is millimetres, the 55 is a percentage of that width, and only the 16 is inches. The R stands for radial construction.

How to read this

  • The first three digits are the width in mm, the middle two are the aspect ratio in percent, the last two the wheel in inches.
  • Sidewall height = width × aspect ÷ 100. For 205/55 that is 112.75 mm.
  • Overall diameter = wheel diameter + twice the sidewall. A 16-inch wheel is 406.4 mm.
  • Once the diameter shifts by more than 3%, the speedometer and odometer drift by the same amount.

Frequently asked questions

Q. What is the overall diameter of 165/70R14?

586.6 mm — the 355.6 mm wheel plus the 115.5 mm sidewall at top and bottom.

Q. How many turns per kilometre does 165/70R14 make?

Its circumference is 1842.9 mm, so 542.6 turns.

Q. What can I swap it for?

12 sizes stay within 3% of its diameter — the closest is 185/55R15 at 584.5 mm.

Q. Why is the sidewall 115.5 mm?

Because it is 70% of the 165 mm width. The aspect ratio is a proportion of the width, not a length.