185/40R21
All technical dimensions and alternatives for this tire size.
| Technical Specs | |
|---|---|
| Diameter | 681.4 mm (26.83 in) |
| Section Width | 185 mm (7.28 in) |
| Sidewall Height | 74 mm |
| Circumference | 2140.7 mm |
| Revs / km | 467.1 |
| 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.
185/40R21