Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/55r16 vs 205/60r16 Tire Comparison Side By Side
  195/55-16 205/60-16 Difference
Diameter inches (mm) 24.44 (620.9) 25.69 (652.4) 1.24 (31.5) 5.1%
Width inches (mm) 7.68 (195) 8.07 (205) 0.39 (10) 5.1%
Circum. inches (mm) 76.8 (1950.61) 80.69 (2049.58) 3.9 (98.96) 5.1%
Sidewall Height inches (mm) 4.22 (107.25) 4.84 (123) 0.62 (15.75) 14.7%
Revolutions per mile (km) 825.04 (512.66) 785.21 (487.91) -39.84 (-24.75) -4.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.01 mph (33.82 km/h)
25 mph (40.23 km/h)26.27 mph (42.27 km/h)
30 mph (48.28 km/h)31.52 mph (50.73 km/h)
35 mph (56.33 km/h)36.78 mph (59.18 km/h)
40 mph (64.37 km/h)42.03 mph (67.64 km/h)
45 mph (72.42 km/h)47.28 mph (76.09 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 km/h)
60 mph (96.56 km/h)63.04 mph (101.46 km/h)
65 mph (104.61 km/h)68.3 mph (109.91 km/h)
70 mph (112.65 km/h)73.55 mph (118.37 km/h)
75 mph (120.7 km/h)78.8 mph (126.82 km/h)
80 mph (128.75 km/h)84.06 mph (135.28 km/h)
85 mph (136.79 km/h)89.31 mph (143.73 km/h)
90 mph (144.84 km/h)94.57 mph (152.19 km/h)
95 mph (152.89 km/h)99.82 mph (160.64 km/h)
100 mph (160.93 km/h)105.07 mph (169.1 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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