Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/35r22 vs 265/35r22 Tire Comparison Side By Side
  255/35-22 265/35-22 Difference
Diameter inches (mm) 29.03 (737.3) 29.3 (744.3) 0.28 (7) 0.9%
Width inches (mm) 10.04 (255) 10.43 (265) 0.39 (10) 3.9%
Circum. inches (mm) 91.19 (2316.3) 92.06 (2338.29) 0.87 (21.99) 0.9%
Sidewall Height inches (mm) 3.51 (89.25) 3.65 (92.75) 0.14 (3.5) 3.9%
Revolutions per mile (km) 694.79 (431.72) 688.26 (427.66) -6.53 (-4.06) -0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.19 mph (32.49 km/h)
25 mph (40.23 km/h)25.24 mph (40.62 km/h)
30 mph (48.28 km/h)30.28 mph (48.74 km/h)
35 mph (56.33 km/h)35.33 mph (56.86 km/h)
40 mph (64.37 km/h)40.38 mph (64.99 km/h)
45 mph (72.42 km/h)45.43 mph (73.11 km/h)
50 mph (80.47 km/h)50.47 mph (81.23 km/h)
55 mph (88.51 km/h)55.52 mph (89.35 km/h)
60 mph (96.56 km/h)60.57 mph (97.48 km/h)
65 mph (104.61 km/h)65.62 mph (105.6 km/h)
70 mph (112.65 km/h)70.66 mph (113.72 km/h)
75 mph (120.7 km/h)75.71 mph (121.85 km/h)
80 mph (128.75 km/h)80.76 mph (129.97 km/h)
85 mph (136.79 km/h)85.81 mph (138.09 km/h)
90 mph (144.84 km/h)90.85 mph (146.22 km/h)
95 mph (152.89 km/h)95.9 mph (154.34 km/h)
100 mph (160.93 km/h)100.95 mph (162.46 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
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