Tire Size Calculator

Alternative Tire Sizes Tire Comparison
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Size B    /  R

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Metric
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Alternative Tire Sizes for 275/50R21


807.7
274.3
2537
138
533.4
Size Diameter Difference Width
315/40R21 784.9 -2.83% 320.0
255/50R21 787.4 -2.52% 254.0
285/45R21 789.9 -2.20% 284.5
275/50R21 807.7 0.00% 274.3