Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
110/60r17 vs 90/90r17 Tire Comparison Side By Side
  110/60-17 90/90-17 Difference
Diameter inches (mm) 22.2 (563.8) 23.38 (593.8) 1.18 (30) 5.3%
Width inches (mm) 4.33 (110) 3.54 (90) -0.79 (-20) -18.2%
Circum. inches (mm) 69.73 (1771.23) 73.44 (1865.48) 3.71 (94.25) 5.3%
Sidewall Height inches (mm) 2.6 (66) 3.19 (81) 0.59 (15) 22.7%
Revolutions per mile (km) 908.6 (564.58) 862.7 (536.05) -45.9 (-28.52) -5.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.06 mph (33.9 km/h)
25 mph (40.23 km/h)26.33 mph (42.37 km/h)
30 mph (48.28 km/h)31.6 mph (50.85 km/h)
35 mph (56.33 km/h)36.86 mph (59.32 km/h)
40 mph (64.37 km/h)42.13 mph (67.8 km/h)
45 mph (72.42 km/h)47.39 mph (76.27 km/h)
50 mph (80.47 km/h)52.66 mph (84.75 km/h)
55 mph (88.51 km/h)57.93 mph (93.22 km/h)
60 mph (96.56 km/h)63.19 mph (101.7 km/h)
65 mph (104.61 km/h)68.46 mph (110.17 km/h)
70 mph (112.65 km/h)73.72 mph (118.65 km/h)
75 mph (120.7 km/h)78.99 mph (127.12 km/h)
80 mph (128.75 km/h)84.26 mph (135.6 km/h)
85 mph (136.79 km/h)89.52 mph (144.07 km/h)
90 mph (144.84 km/h)94.79 mph (152.55 km/h)
95 mph (152.89 km/h)100.05 mph (161.02 km/h)
100 mph (160.93 km/h)105.32 mph (169.5 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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