Tire sizes / 305/30R20
305/30R20 Tire Size
305/30R20
- 305: tread width of 305 mm (12 in)
- 30: sidewall height is 30% of the width, about 92 mm
- R: radial construction
- 20: fits a 20-inch wheel
Dimensions
| Overall diameter | 27.2 in (691 mm) |
|---|---|
| Section width | 12 in (305 mm) |
| Sidewall height | 3.6 in (92 mm) |
| Wheel diameter | 20 in |
| Revolutions per mile | about 741 |
Nominal figures calculated from the size code. Real tires vary a little by brand and tread depth.
Cars that came with 305/30R20 tires
Factory fitment only, from owner's manuals. Many other cars can run this size; check with a tire shop before changing size.