Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
190/55r15 vs 195/35r15 Tire Comparison Side By Side
  190/55-15 195/35-15 Difference
Diameter inches (mm) 23.23 (590) 20.37 (517.5) -2.85 (-72.5) -12.3%
Width inches (mm) 7.48 (190) 7.68 (195) 0.2 (5) 2.6%
Circum. inches (mm) 72.97 (1853.54) 64.01 (1625.77) -8.97 (-227.77) -12.3%
Sidewall Height inches (mm) 4.11 (104.5) 2.69 (68.25) -1.43 (-36.25) -34.7%
Revolutions per mile (km) 868.25 (539.51) 989.89 (615.09) 121.64 (75.58) 14%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.54 mph (28.23 km/h)
25 mph (40.23 km/h)21.93 mph (35.29 km/h)
30 mph (48.28 km/h)26.31 mph (42.35 km/h)
35 mph (56.33 km/h)30.7 mph (49.41 km/h)
40 mph (64.37 km/h)35.08 mph (56.46 km/h)
45 mph (72.42 km/h)39.47 mph (63.52 km/h)
50 mph (80.47 km/h)43.86 mph (70.58 km/h)
55 mph (88.51 km/h)48.24 mph (77.64 km/h)
60 mph (96.56 km/h)52.63 mph (84.7 km/h)
65 mph (104.61 km/h)57.01 mph (91.75 km/h)
70 mph (112.65 km/h)61.4 mph (98.81 km/h)
75 mph (120.7 km/h)65.78 mph (105.87 km/h)
80 mph (128.75 km/h)70.17 mph (112.93 km/h)
85 mph (136.79 km/h)74.56 mph (119.99 km/h)
90 mph (144.84 km/h)78.94 mph (127.04 km/h)
95 mph (152.89 km/h)83.33 mph (134.1 km/h)
100 mph (160.93 km/h)87.71 mph (141.16 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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