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 255/70R18


815.3
254.0
2560
179
457.2
Size Diameter Difference Width
285/60R18 800.1 -1.87% 284.5
265/65R18 802.6 -1.56% 264.2
275/65R18 815.3 0.00% 274.3
255/70R18 815.3 0.00% 254.0
305/60R18 823.0 +0.93% 304.8
265/70R18 828.0 +1.56% 264.2
285/65R18 828.0 +1.56% 284.5
325/60R18 838.2 +2.80% 317.5