305/55R21
All technical dimensions and alternatives for this tire size.
| Technical Specs | |
|---|---|
| Diameter | 868.9 mm (34.21 in) |
| Section Width | 305 mm (12.01 in) |
| Sidewall Height | 167.8 mm |
| Circumference | 2729.7 mm |
| Revs / km | 366.3 |
| Rim Diameter (in) | R21 (533.4 mm) |
Tire prices in this size
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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.
305/55R21