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 315/30R21


721.4
315.0
2266
95
533.4
Size Diameter Difference Width
285/30R21 703.6 -2.46% 284.5
245/35R21 706.1 -2.11% 246.4
295/30R21 711.2 -1.41% 294.6
355/25R21 711.2 -1.41% 355.6
305/30R21 716.3 -0.70% 304.8
265/35R21 718.8 -0.35% 264.2
315/30R21 721.4 0.00% 315.0
275/35R21 726.4 +0.70% 274.3
325/30R21 729.0 +1.06% 325.1
245/40R21 729.0 +1.06% 246.4
285/35R21 734.1 +1.76% 284.5
295/35R21 739.1 +2.46% 294.6