Tire Size Calculator

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

Find
Metric
Inches
Alternative Tire Sizes for 255/40R20


711.2
254.0
2235
102
508.0
Size Diameter Difference Width
305/30R20 690.9 -2.86% 304.8
315/30R20 696.0 -2.14% 315.0
275/35R20 701.0 -1.43% 274.3
245/40R20 703.6 -1.07% 246.4
325/30R20 703.6 -1.07% 325.1
335/30R20 708.7 -0.36% 335.3
285/35R20 708.7 -0.36% 284.5
255/40R20 711.2 0.00% 254.0
265/40R20 711.2 0.00% 264.2
295/35R20 713.7 +0.36% 294.6
345/30R20 713.7 +0.36% 345.4
235/45R20 718.8 +1.07% 236.2
305/35R20 721.4 +1.43% 304.8
245/45R20 729.0 +2.50% 246.4
315/35R20 729.0 +2.50% 315.0
275/40R20 729.0 +2.50% 274.3