Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/45r16 vs 195/55r16 Tire Comparison Side By Side
  195/45-16 195/55-16 Difference
Diameter inches (mm) 22.91 (581.9) 24.44 (620.9) 1.54 (39) 6.7%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 71.97 (1828.09) 76.8 (1950.61) 4.82 (122.52) 6.7%
Sidewall Height inches (mm) 3.45 (87.75) 4.22 (107.25) 0.77 (19.5) 22.2%
Revolutions per mile (km) 880.34 (547.02) 825.04 (512.66) -55.3 (-34.36) -6.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.34 mph (34.34 km/h)
25 mph (40.23 km/h)26.68 mph (42.93 km/h)
30 mph (48.28 km/h)32.01 mph (51.52 km/h)
35 mph (56.33 km/h)37.35 mph (60.1 km/h)
40 mph (64.37 km/h)42.68 mph (68.69 km/h)
45 mph (72.42 km/h)48.02 mph (77.27 km/h)
50 mph (80.47 km/h)53.35 mph (85.86 km/h)
55 mph (88.51 km/h)58.69 mph (94.45 km/h)
60 mph (96.56 km/h)64.02 mph (103.03 km/h)
65 mph (104.61 km/h)69.36 mph (111.62 km/h)
70 mph (112.65 km/h)74.69 mph (120.2 km/h)
75 mph (120.7 km/h)80.03 mph (128.79 km/h)
80 mph (128.75 km/h)85.36 mph (137.38 km/h)
85 mph (136.79 km/h)90.7 mph (145.96 km/h)
90 mph (144.84 km/h)96.03 mph (154.55 km/h)
95 mph (152.89 km/h)101.37 mph (163.13 km/h)
100 mph (160.93 km/h)106.7 mph (171.72 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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