Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
33/14.5r22 vs 33/12.5r22 Tire Comparison Side By Side
  33/14.5-22 33/12.5-22 Difference
Diameter inches (mm) 33.01 (838.48) 33.02 (838.64) 0.01 (0.16) 0%
Width inches (mm) 14.49 (368) 12.52 (318) -1.97 (-50) -13.6%
Circum. inches (mm) 103.71 (2634.16) 103.73 (2634.67) 0.02 (0.5) 0%
Sidewall Height inches (mm) 5.51 (139.84) 5.51 (139.92) 0 (0.08) 0.1%
Revolutions per mile (km) 610.95 (379.63) 610.83 (379.55) -0.12 (-0.07) -0%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20 mph (32.19 km/h)
25 mph (40.23 km/h)25 mph (40.24 km/h)
30 mph (48.28 km/h)30.01 mph (48.29 km/h)
35 mph (56.33 km/h)35.01 mph (56.34 km/h)
40 mph (64.37 km/h)40.01 mph (64.39 km/h)
45 mph (72.42 km/h)45.01 mph (72.43 km/h)
50 mph (80.47 km/h)50.01 mph (80.48 km/h)
55 mph (88.51 km/h)55.01 mph (88.53 km/h)
60 mph (96.56 km/h)60.01 mph (96.58 km/h)
65 mph (104.61 km/h)65.01 mph (104.63 km/h)
70 mph (112.65 km/h)70.01 mph (112.68 km/h)
75 mph (120.7 km/h)75.01 mph (120.72 km/h)
80 mph (128.75 km/h)80.02 mph (128.77 km/h)
85 mph (136.79 km/h)85.02 mph (136.82 km/h)
90 mph (144.84 km/h)90.02 mph (144.87 km/h)
95 mph (152.89 km/h)95.02 mph (152.92 km/h)
100 mph (160.93 km/h)100.02 mph (160.97 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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