Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/60r16 vs 195/55r16 Tire Comparison Side By Side
  205/60-16 195/55-16 Difference
Diameter inches (mm) 25.69 (652.4) 24.44 (620.9) -1.24 (-31.5) -4.8%
Width inches (mm) 8.07 (205) 7.68 (195) -0.39 (-10) -4.9%
Circum. inches (mm) 80.69 (2049.58) 76.8 (1950.61) -3.9 (-98.96) -4.8%
Sidewall Height inches (mm) 4.84 (123) 4.22 (107.25) -0.62 (-15.75) -12.8%
Revolutions per mile (km) 785.21 (487.91) 825.04 (512.66) 39.84 (24.75) 5.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.03 mph (30.63 km/h)
25 mph (40.23 km/h)23.79 mph (38.29 km/h)
30 mph (48.28 km/h)28.55 mph (45.95 km/h)
35 mph (56.33 km/h)33.31 mph (53.61 km/h)
40 mph (64.37 km/h)38.07 mph (61.27 km/h)
45 mph (72.42 km/h)42.83 mph (68.92 km/h)
50 mph (80.47 km/h)47.59 mph (76.58 km/h)
55 mph (88.51 km/h)52.34 mph (84.24 km/h)
60 mph (96.56 km/h)57.1 mph (91.9 km/h)
65 mph (104.61 km/h)61.86 mph (99.56 km/h)
70 mph (112.65 km/h)66.62 mph (107.21 km/h)
75 mph (120.7 km/h)71.38 mph (114.87 km/h)
80 mph (128.75 km/h)76.14 mph (122.53 km/h)
85 mph (136.79 km/h)80.9 mph (130.19 km/h)
90 mph (144.84 km/h)85.65 mph (137.85 km/h)
95 mph (152.89 km/h)90.41 mph (145.51 km/h)
100 mph (160.93 km/h)95.17 mph (153.16 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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