Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/40r20 vs 265/35r22 Tire Comparison Side By Side
  265/40-20 265/35-22 Difference
Diameter inches (mm) 28.35 (720) 29.3 (744.3) 0.96 (24.3) 3.4%
Width inches (mm) 10.43 (265) 10.43 (265) 0 (0) 0%
Circum. inches (mm) 89.05 (2261.95) 92.06 (2338.29) 3.01 (76.34) 3.4%
Sidewall Height inches (mm) 4.17 (106) 3.65 (92.75) -0.52 (-13.25) -12.5%
Revolutions per mile (km) 711.49 (442.1) 688.26 (427.66) -23.23 (-14.43) -3.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.68 mph (33.27 km/h)
25 mph (40.23 km/h)25.84 mph (41.59 km/h)
30 mph (48.28 km/h)31.01 mph (49.91 km/h)
35 mph (56.33 km/h)36.18 mph (58.23 km/h)
40 mph (64.37 km/h)41.35 mph (66.55 km/h)
45 mph (72.42 km/h)46.52 mph (74.86 km/h)
50 mph (80.47 km/h)51.69 mph (83.18 km/h)
55 mph (88.51 km/h)56.86 mph (91.5 km/h)
60 mph (96.56 km/h)62.03 mph (99.82 km/h)
65 mph (104.61 km/h)67.19 mph (108.14 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph)
2.35 2.73 2.94 3.07 3.21 3.31 3.42 3.55 3.73 3.91 4.11 4.27 4.56 4.88 5.13 5.29 5.38 5.71 6.17 7.17
17512035219122882392246725492646278029143063318233993637382339434010425645995344
Better Fuel Economy Factory Ratios Increased Power

Most Popular 265/40-R20 Comparisons

To Top