Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/70r16 vs 240/35r22 Tire Comparison Side By Side
  195/70-16 240/35-22 Difference
Diameter inches (mm) 26.75 (679.4) 28.61 (726.8) 1.87 (47.4) 7%
Width inches (mm) 7.68 (195) 9.45 (240) 1.77 (45) 23.1%
Circum. inches (mm) 84.03 (2134.4) 89.89 (2283.31) 5.86 (148.91) 7%
Sidewall Height inches (mm) 5.37 (136.5) 3.31 (84) -2.07 (-52.5) -38.5%
Revolutions per mile (km) 754 (468.52) 704.83 (437.96) -49.17 (-30.56) -6.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.4 mph (34.43 km/h)
25 mph (40.23 km/h)26.74 mph (43.04 km/h)
30 mph (48.28 km/h)32.09 mph (51.65 km/h)
35 mph (56.33 km/h)37.44 mph (60.26 km/h)
40 mph (64.37 km/h)42.79 mph (68.87 km/h)
45 mph (72.42 km/h)48.14 mph (77.47 km/h)
50 mph (80.47 km/h)53.49 mph (86.08 km/h)
55 mph (88.51 km/h)58.84 mph (94.69 km/h)
60 mph (96.56 km/h)64.19 mph (103.3 km/h)
65 mph (104.61 km/h)69.53 mph (111.91 km/h)
70 mph (112.65 km/h)74.88 mph (120.51 km/h)
75 mph (120.7 km/h)80.23 mph (129.12 km/h)
80 mph (128.75 km/h)85.58 mph (137.73 km/h)
85 mph (136.79 km/h)90.93 mph (146.34 km/h)
90 mph (144.84 km/h)96.28 mph (154.95 km/h)
95 mph (152.89 km/h)101.63 mph (163.55 km/h)
100 mph (160.93 km/h)106.98 mph (172.16 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
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