305/30R21
All technical dimensions and alternatives for this tire size.
| Technical Specs | |
|---|---|
| Diameter | 716.4 mm (28.2 in) |
| Section Width | 305 mm (12.01 in) |
| Sidewall Height | 91.5 mm |
| Circumference | 2250.6 mm |
| Revs / km | 444.3 |
| Rim Diameter (in) | R21 (533.4 mm) |
Alternative sizes (±3%)
Equivalents on other rim diameters
Calculations use nominal dimensions; actual measurements can vary ±1–2% by manufacturer and model. Always follow your owner's manual and door-jamb placard.
305/30R21