195/60R15
Overall diameter 615 mm
195/60R15 — 615 mm tall, and what it swaps with
195/60R15 is 195 mm wide with a 60% sidewall on a 15-inch wheel. That sidewall is 117 mm, so the tyre stands 615 mm tall and turns 517.6 times per kilometre.
- Section width
- 195 mm
- Aspect ratio
- 60 %
- Wheel size
- 15 in (381 mm)
- Sidewall height
- 117 mm
- Overall diameter
- 615 mm (24.21 in)
- Circumference
- 1932.1 mm
- Turns per km
- 517.6
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.
225/35R18614.7 mm · -0.05% you go slower185/70R14614.6 mm · -0.07% you go slower205/45R17616.3 mm · +0.21% you go faster205/50R16611.4 mm · -0.59% you go slower195/55R16620.9 mm · +0.96% you go faster195/65R14609.1 mm · -0.96% you go slower185/65R15621.5 mm · +1.06% you go faster175/65R15608.5 mm · -1.06% you go slower215/45R17625.3 mm · +1.67% you go faster205/60R15627 mm · +1.95% you go faster195/70R13603.2 mm · -1.92% you go slower185/60R15603 mm · -1.95% you go slower
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 195/60R15?
615 mm — the 381 mm wheel plus the 117 mm sidewall at top and bottom.
Q. How many turns per kilometre does 195/60R15 make?
Its circumference is 1932.1 mm, so 517.6 turns.
Q. What can I swap it for?
12 sizes stay within 3% of its diameter — the closest is 225/35R18 at 614.7 mm.
Q. Why is the sidewall 117 mm?
Because it is 60% of the 195 mm width. The aspect ratio is a proportion of the width, not a length.