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 365/45r22 Tire Comparison Side By Side
  33/14.5-22 365/45-22 Difference
Diameter inches (mm) 33.01 (838.48) 34.93 (887.3) 1.92 (48.82) 5.8%
Width inches (mm) 14.49 (368) 14.37 (365) -0.12 (-3) -0.8%
Circum. inches (mm) 103.71 (2634.16) 109.75 (2787.54) 6.04 (153.37) 5.8%
Sidewall Height inches (mm) 5.51 (139.84) 6.47 (164.25) 0.96 (24.41) 17.5%
Revolutions per mile (km) 610.95 (379.63) 577.34 (358.74) -33.62 (-20.89) -5.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.16 mph (34.06 km/h)
25 mph (40.23 km/h)26.46 mph (42.58 km/h)
30 mph (48.28 km/h)31.75 mph (51.09 km/h)
35 mph (56.33 km/h)37.04 mph (59.61 km/h)
40 mph (64.37 km/h)42.33 mph (68.12 km/h)
45 mph (72.42 km/h)47.62 mph (76.64 km/h)
50 mph (80.47 km/h)52.91 mph (85.15 km/h)
55 mph (88.51 km/h)58.2 mph (93.67 km/h)
60 mph (96.56 km/h)63.49 mph (102.18 km/h)
65 mph (104.61 km/h)68.78 mph (110.7 km/h)
70 mph (112.65 km/h)74.08 mph (119.21 km/h)
75 mph (120.7 km/h)79.37 mph (127.73 km/h)
80 mph (128.75 km/h)84.66 mph (136.24 km/h)
85 mph (136.79 km/h)89.95 mph (144.76 km/h)
90 mph (144.84 km/h)95.24 mph (153.27 km/h)
95 mph (152.89 km/h)100.53 mph (161.79 km/h)
100 mph (160.93 km/h)105.82 mph (170.31 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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