Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/75r16 vs 205/80r16 Tire Comparison Side By Side
  195/75-16 205/80-16 Difference
Diameter inches (mm) 27.52 (698.9) 28.91 (734.4) 1.4 (35.5) 5.1%
Width inches (mm) 7.68 (195) 8.07 (205) 0.39 (10) 5.1%
Circum. inches (mm) 86.44 (2195.66) 90.83 (2307.19) 4.39 (111.53) 5.1%
Sidewall Height inches (mm) 5.76 (146.25) 6.46 (164) 0.7 (17.75) 12.1%
Revolutions per mile (km) 732.97 (455.44) 697.54 (433.43) -35.43 (-22.02) -4.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.02 mph (33.82 km/h)
25 mph (40.23 km/h)26.27 mph (42.28 km/h)
30 mph (48.28 km/h)31.52 mph (50.73 km/h)
35 mph (56.33 km/h)36.78 mph (59.19 km/h)
40 mph (64.37 km/h)42.03 mph (67.64 km/h)
45 mph (72.42 km/h)47.29 mph (76.1 km/h)
50 mph (80.47 km/h)52.54 mph (84.55 km/h)
55 mph (88.51 km/h)57.79 mph (93.01 km/h)
60 mph (96.56 km/h)63.05 mph (101.47 km/h)
65 mph (104.61 km/h)68.3 mph (109.92 km/h)
70 mph (112.65 km/h)73.56 mph (118.38 km/h)
75 mph (120.7 km/h)78.81 mph (126.83 km/h)
80 mph (128.75 km/h)84.06 mph (135.29 km/h)
85 mph (136.79 km/h)89.32 mph (143.74 km/h)
90 mph (144.84 km/h)94.57 mph (152.2 km/h)
95 mph (152.89 km/h)99.83 mph (160.65 km/h)
100 mph (160.93 km/h)105.08 mph (169.11 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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