Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
445/65r22.5 vs 365/80r22.5 Tire Comparison Side By Side
  445/65-22.5 365/80-22.5 Difference
Diameter inches (mm) 45.28 (1150) 45.49 (1155.5) 0.22 (5.5) 0.5%
Width inches (mm) 17.52 (445) 14.37 (365) -3.15 (-80) -18%
Circum. inches (mm) 142.24 (3612.83) 142.92 (3630.11) 0.68 (17.28) 0.5%
Sidewall Height inches (mm) 11.39 (289.25) 11.5 (292) 0.11 (2.75) 1%
Revolutions per mile (km) 445.45 (276.79) 443.33 (275.47) -2.12 (-1.32) -0.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.1 mph (32.34 km/h)
25 mph (40.23 km/h)25.12 mph (40.43 km/h)
30 mph (48.28 km/h)30.14 mph (48.51 km/h)
35 mph (56.33 km/h)35.17 mph (56.6 km/h)
40 mph (64.37 km/h)40.19 mph (64.68 km/h)
45 mph (72.42 km/h)45.22 mph (72.77 km/h)
50 mph (80.47 km/h)50.24 mph (80.85 km/h)
55 mph (88.51 km/h)55.26 mph (88.94 km/h)
60 mph (96.56 km/h)60.29 mph (97.02 km/h)
65 mph (104.61 km/h)65.31 mph (105.11 km/h)
70 mph (112.65 km/h)70.33 mph (113.19 km/h)
75 mph (120.7 km/h)75.36 mph (121.28 km/h)
80 mph (128.75 km/h)80.38 mph (129.36 km/h)
85 mph (136.79 km/h)85.41 mph (137.45 km/h)
90 mph (144.84 km/h)90.43 mph (145.53 km/h)
95 mph (152.89 km/h)95.45 mph (153.62 km/h)
100 mph (160.93 km/h)100.48 mph (161.7 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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Most Popular 445/65-R22.5 Comparisons

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