/70 series tire aspect ratio
What does /70 mean in a tire size?
A /70 aspect ratio means the tire sidewall height is 70% of the section width. For a 205/70R16 tire, the sidewall is 143.5mm tall. Common 70-series sizes span multiple rim diameters.
Popular sizes
- 165/70 R14
- 195/70 R14
- 205/70 R15
- 215/70 R15
- 225/70 R15
- 245/70 R16
- 265/70 R16
- 235/70 R17
- 245/70 R17
- 265/70 R17
- 275/70 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.