Tire Size Calculator

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

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Alternative Tire Sizes for 255/30R21


685.8
254.0
2154
77
533.4
Size Diameter Difference Width
245/30R21 680.7 -0.74% 246.4
295/25R21 680.7 -0.74% 294.6
255/30R21 685.8 0.00% 254.0
265/30R21 693.4 +1.11% 264.2
275/30R21 698.5 +1.85% 274.3
285/30R21 703.6 +2.59% 284.5
245/35R21 706.1 +2.96% 246.4