265/50R20 tire size

A 265/50R20 tire is 265 mm wide with a sidewall 50% of its width (132.5 mm), fits a 20-inch rim and has an overall diameter of 773 mm (30.4 in).

DimensionMetricImperial
Section width265 mm10.43 in
Sidewall height132.5 mm5.22 in
Rim diameter508.0 mm20 in
Overall diameter773.0 mm30.43 in
Circumference2,428.5 mm95.61 in
Revolutions412 per km663 per mile

Reading the size 265/50R20

265Width in mm50Aspect 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 265/50R20

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
245/75R16774 mm+0.1%100.1Compare
245/70R17775 mm+0.2%100.2Compare
265/60R18775 mm+0.3%100.3Compare
265/65R17776 mm+0.4%100.4Compare
265/70R16777 mm+0.6%100.6Compare
255/70R16763 mm-1.2%98.8Compare
255/65R17763 mm-1.3%98.7
255/60R18763 mm-1.3%98.7

Compare 265/50R20 with any size →

Other 20-inch sizes

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