Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
240/55r16 vs 235/110r16 Tire Comparison Side By Side
  240/55-16 235/110-16 Difference
Diameter inches (mm) 26.39 (670.4) 36.35 (923.4) 9.96 (253) 37.7%
Width inches (mm) 9.45 (240) 9.25 (235) -0.2 (-5) -2.1%
Circum. inches (mm) 82.92 (2106.12) 114.21 (2900.95) 31.29 (794.82) 37.7%
Sidewall Height inches (mm) 5.2 (132) 10.18 (258.5) 4.98 (126.5) 95.8%
Revolutions per mile (km) 764.13 (474.81) 554.77 (344.71) -209.36 (-130.09) -27.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)27.55 mph (44.33 km/h)
25 mph (40.23 km/h)34.43 mph (55.42 km/h)
30 mph (48.28 km/h)41.32 mph (66.5 km/h)
35 mph (56.33 km/h)48.21 mph (77.58 km/h)
40 mph (64.37 km/h)55.1 mph (88.67 km/h)
45 mph (72.42 km/h)61.98 mph (99.75 km/h)
50 mph (80.47 km/h)68.87 mph (110.83 km/h)
55 mph (88.51 km/h)75.76 mph (121.92 km/h)
60 mph (96.56 km/h)82.64 mph (133 km/h)
65 mph (104.61 km/h)89.53 mph (144.09 km/h)
70 mph (112.65 km/h)96.42 mph (155.17 km/h)
75 mph (120.7 km/h)103.3 mph (166.25 km/h)
80 mph (128.75 km/h)110.19 mph (177.34 km/h)
85 mph (136.79 km/h)117.08 mph (188.42 km/h)
90 mph (144.84 km/h)123.96 mph (199.5 km/h)
95 mph (152.89 km/h)130.85 mph (210.59 km/h)
100 mph (160.93 km/h)137.74 mph (221.67 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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