Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
135/75r15 vs 35/16r15 Tire Comparison Side By Side
  135/75-15 35/16-15 Difference
Diameter inches (mm) 22.97 (583.5) 35.14 (892.56) 12.17 (309.06) 53%
Width inches (mm) 5.31 (135) 15.98 (406) 10.67 (271) 200.7%
Circum. inches (mm) 72.17 (1833.12) 110.4 (2804.06) 38.23 (970.94) 53%
Sidewall Height inches (mm) 3.99 (101.25) 10.07 (255.78) 6.08 (154.53) 152.6%
Revolutions per mile (km) 877.93 (545.52) 573.93 (356.63) -303.99 (-188.89) -34.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)30.59 mph (49.24 km/h)
25 mph (40.23 km/h)38.24 mph (61.54 km/h)
30 mph (48.28 km/h)45.89 mph (73.85 km/h)
35 mph (56.33 km/h)53.54 mph (86.16 km/h)
40 mph (64.37 km/h)61.19 mph (98.47 km/h)
45 mph (72.42 km/h)68.83 mph (110.78 km/h)
50 mph (80.47 km/h)76.48 mph (123.09 km/h)
55 mph (88.51 km/h)84.13 mph (135.4 km/h)
60 mph (96.56 km/h)91.78 mph (147.71 km/h)
65 mph (104.61 km/h)99.43 mph (160.01 km/h)
70 mph (112.65 km/h)107.08 mph (172.32 km/h)
75 mph (120.7 km/h)114.72 mph (184.63 km/h)
80 mph (128.75 km/h)122.37 mph (196.94 km/h)
85 mph (136.79 km/h)130.02 mph (209.25 km/h)
90 mph (144.84 km/h)137.67 mph (221.56 km/h)
95 mph (152.89 km/h)145.32 mph (233.87 km/h)
100 mph (160.93 km/h)152.97 mph (246.18 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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