Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/55r22 vs 35/12.5r22 Tire Comparison Side By Side
  265/55-22 35/12.5-22 Difference
Diameter inches (mm) 33.48 (850.3) 35.02 (889.52) 1.54 (39.22) 4.6%
Width inches (mm) 10.43 (265) 12.52 (318) 2.09 (53) 20%
Circum. inches (mm) 105.17 (2671.3) 110.02 (2794.51) 4.85 (123.21) 4.6%
Sidewall Height inches (mm) 5.74 (145.75) 6.51 (165.36) 0.77 (19.61) 13.5%
Revolutions per mile (km) 602.46 (374.35) 575.89 (357.84) -26.56 (-16.51) -4.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.92 mph (33.67 km/h)
25 mph (40.23 km/h)26.15 mph (42.09 km/h)
30 mph (48.28 km/h)31.38 mph (50.51 km/h)
35 mph (56.33 km/h)36.61 mph (58.93 km/h)
40 mph (64.37 km/h)41.84 mph (67.34 km/h)
45 mph (72.42 km/h)47.08 mph (75.76 km/h)
50 mph (80.47 km/h)52.31 mph (84.18 km/h)
55 mph (88.51 km/h)57.54 mph (92.6 km/h)
60 mph (96.56 km/h)62.77 mph (101.01 km/h)
65 mph (104.61 km/h)68 mph (109.43 km/h)
70 mph (112.65 km/h)73.23 mph (117.85 km/h)
75 mph (120.7 km/h)78.46 mph (126.27 km/h)
80 mph (128.75 km/h)83.69 mph (134.69 km/h)
85 mph (136.79 km/h)88.92 mph (143.1 km/h)
90 mph (144.84 km/h)94.15 mph (151.52 km/h)
95 mph (152.89 km/h)99.38 mph (159.94 km/h)
100 mph (160.93 km/h)104.61 mph (168.36 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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