Tire Size Calculator

Alternative Tire Sizes Tire Comparison
Size A    /  R
Size B    /  R

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Metric
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Alternative Tire Sizes for 285/45R20


764.5
284.5
2403
128
508.0
Size Diameter Difference Width
235/50R20 744.2 -2.66% 236.2
295/40R20 744.2 -2.66% 294.6
265/45R20 746.8 -2.33% 264.2
245/50R20 751.8 -1.66% 246.4
305/40R20 751.8 -1.66% 304.8
275/45R20 754.4 -1.33% 274.3
255/50R20 762.0 -0.33% 254.0
285/45R20 764.5 0.00% 284.5
235/55R20 767.1 +0.33% 236.2
265/50R20 772.2 +1.00% 264.2
295/45R20 774.7 +1.33% 294.6
275/50R20 782.3 +2.33% 274.3
305/45R20 782.3 +2.33% 304.8
255/55R20 787.4 +2.99% 254.0