245/35R20 tire size

A 245/35R20 tire is 245 mm wide with a sidewall 35% of its width (85.8 mm), fits a 20-inch rim and has an overall diameter of 680 mm (26.8 in).

DimensionMetricImperial
Section width245 mm9.65 in
Sidewall height85.8 mm3.38 in
Rim diameter508.0 mm20 in
Overall diameter679.5 mm26.75 in
Circumference2,134.7 mm84.04 in
Revolutions468 per km754 per mile

Reading the size 245/35R20

245Width in mm35Aspect ratio (sidewall % of width)RRadial construction20Rim diameter in inches

The load index and speed rating (for example 91V) follow the size on the sidewall. Replacement tires should match or exceed the original load index and speed rating.

Alternative sizes within 3% of 245/35R20

A replacement size should stay within about 3% of the original diameter so the speedometer, ABS and transmission stay accurate. Always check clearance, load index and the vehicle manufacturer's approved sizes.

SizeDiameterDifferenceSpeedo reads 100 → actual
225/55R17679 mm-0.0%100.0Compare
245/40R19679 mm-0.1%99.9Compare
245/45R18678 mm-0.3%99.7Compare
215/70R15682 mm+0.4%100.4Compare
225/50R18682 mm+0.4%100.4Compare
225/60R16676 mm-0.5%99.5Compare
215/65R16686 mm+0.9%100.9
205/65R16673 mm-1.0%99.0

Compare 245/35R20 with any size →

Other 20-inch sizes

245/40R20245/45R20245/50R20255/35R20255/45R20255/50R20265/50R20275/40R20275/45R20275/55R20275/60R20275/65R20