Which cars use 305/30R21 tyres?
305/30R21 is a factory tyre size on 1 car models in our data. Its overall diameter is about 716.4 mm.
Size details
- Overall diameter
- 716.4 mm
- Section width
- 305 mm
- Sidewall height
- 91.5 mm
- Rim diameter
- 21″
- Rolling circumference
- 2,251 mm
- Revolutions per km
- 444
Values are calculated from the size. Real tyres differ by a few millimetres between brands.
Cars using 305/30R21
| Car | Axle | Versions |
|---|---|---|
| Audi e-tron GT | Rear only | 1 |
Sizes that can replace 305/30R21
This is a calculation, not a factory approval. The list shows sizes whose overall diameter is within ±3%. Check your door label, certificate of conformity (CoC) or tyre shop before fitting.
315/25R22−0.0%
295/35R20−0.3%
325/25R22+0.7%
305/35R20+0.7%
305/25R22−0.7%
295/30R21−0.8%315/30R21+0.8%
335/30R20−1.0%
285/35R20−1.2%
335/25R22+1.4%