/65 series tire aspect ratio
What does /65 mean in a tire size?
A /65 aspect ratio means the tire sidewall height is 65% of the section width. For a 205/65R16 tire, the sidewall is 133.25mm tall. Common 65-series sizes span multiple rim diameters.
Popular sizes
- 175/65 R14
- 185/65 R14
- 175/65 R15
- 185/65 R15
- 195/65 R15
- 205/65 R15
- 215/65 R16
- 225/65 R16
- 235/65 R16
- 215/65 R17
- 225/65 R17
- 235/65 R17
- 245/65 R17
- 255/65 R17
- 265/65 R17
- 235/65 R18
- 245/65 R18
- 265/65 R18
- 275/65 R18
- 285/65 R18
Full aspect ratio guide · Tire section width guide · Tire size calculator
Seasonal check
Planning a long summer drive?
Use the budget and running-cost tools before a trip, especially if the current tires are worn or the replacement size changes diameter.
- Technical check
- 2026-06-28
- Content updated
- 2026-06-21
What changed
- Checked generated routes, metadata, sitemap inclusion and localized page rendering.