Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
325/35r22 vs 265/35r22 Tire Comparison Side By Side
  325/35-22 265/35-22 Difference
Diameter inches (mm) 30.96 (786.3) 29.3 (744.3) -1.65 (-42) -5.3%
Width inches (mm) 12.8 (325) 10.43 (265) -2.36 (-60) -18.5%
Circum. inches (mm) 97.25 (2470.23) 92.06 (2338.29) -5.19 (-131.95) -5.3%
Sidewall Height inches (mm) 4.48 (113.75) 3.65 (92.75) -0.83 (-21) -18.5%
Revolutions per mile (km) 651.49 (404.82) 688.26 (427.66) 36.76 (22.84) 5.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.93 mph (30.47 km/h)
25 mph (40.23 km/h)23.66 mph (38.08 km/h)
30 mph (48.28 km/h)28.4 mph (45.7 km/h)
35 mph (56.33 km/h)33.13 mph (53.32 km/h)
40 mph (64.37 km/h)37.86 mph (60.94 km/h)
45 mph (72.42 km/h)42.6 mph (68.55 km/h)
50 mph (80.47 km/h)47.33 mph (76.17 km/h)
55 mph (88.51 km/h)52.06 mph (83.79 km/h)
60 mph (96.56 km/h)56.8 mph (91.4 km/h)
65 mph (104.61 km/h)61.53 mph (99.02 km/h)
70 mph (112.65 km/h)66.26 mph (106.64 km/h)
75 mph (120.7 km/h)70.99 mph (114.25 km/h)
80 mph (128.75 km/h)75.73 mph (121.87 km/h)
85 mph (136.79 km/h)80.46 mph (129.49 km/h)
90 mph (144.84 km/h)85.19 mph (137.1 km/h)
95 mph (152.89 km/h)89.93 mph (144.72 km/h)
100 mph (160.93 km/h)94.66 mph (152.34 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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