205/70R14
Overall diameter 642.6 mm
205/70R14 — 642.6 mm tall, and what it swaps with
205/70R14 is 205 mm wide with a 70% sidewall on a 14-inch wheel. That sidewall is 143.5 mm, so the tyre stands 642.6 mm tall and turns 495.3 times per kilometre.
- Section width
- 205 mm
- Aspect ratio
- 70 %
- Wheel size
- 14 in (355.6 mm)
- Sidewall height
- 143.5 mm
- Overall diameter
- 642.6 mm (25.3 in)
- Circumference
- 2018.8 mm
- Turns per km
- 495.3
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.
215/55R16642.9 mm · +0.05% you go faster235/45R17643.3 mm · +0.11% you go faster265/30R19641.6 mm · -0.16% you go slower195/60R16640.4 mm · -0.34% you go slower225/35R19640.1 mm · -0.39% you go slower235/40R18645.2 mm · +0.4% you go faster215/50R17646.8 mm · +0.65% you go faster235/35R19647.1 mm · +0.7% you go faster205/65R15647.5 mm · +0.76% you go faster275/30R19647.6 mm · +0.78% you go faster225/40R18637.2 mm · -0.84% you go slower205/50R17636.8 mm · -0.9% 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 205/70R14?
642.6 mm — the 355.6 mm wheel plus the 143.5 mm sidewall at top and bottom.
Q. How many turns per kilometre does 205/70R14 make?
Its circumference is 2018.8 mm, so 495.3 turns.
Q. What can I swap it for?
12 sizes stay within 3% of its diameter — the closest is 215/55R16 at 642.9 mm.
Q. Why is the sidewall 143.5 mm?
Because it is 70% of the 205 mm width. The aspect ratio is a proportion of the width, not a length.