Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/55r14 vs 205/55r14 Tire Comparison Side By Side
  205/55-14 205/55-14 Difference
Diameter inches (mm) 22.88 (581.1) 22.88 (581.1) 0 (0) 0%
Width inches (mm) 8.07 (205) 8.07 (205) 0 (0) 0%
Circum. inches (mm) 71.87 (1825.58) 71.87 (1825.58) 0 (0) 0%
Sidewall Height inches (mm) 4.44 (112.75) 4.44 (112.75) 0 (0) 0%
Revolutions per mile (km) 881.55 (547.77) 881.55 (547.77) 0 (0) 0%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20 mph (32.19 km/h)
25 mph (40.23 km/h)25 mph (40.23 km/h)
30 mph (48.28 km/h)30 mph (48.28 km/h)
35 mph (56.33 km/h)35 mph (56.33 km/h)
40 mph (64.37 km/h)40 mph (64.37 km/h)
45 mph (72.42 km/h)45 mph (72.42 km/h)
50 mph (80.47 km/h)50 mph (80.47 km/h)
55 mph (88.51 km/h)55 mph (88.51 km/h)
60 mph (96.56 km/h)60 mph (96.56 km/h)
65 mph (104.61 km/h)65 mph (104.61 km/h)
70 mph (112.65 km/h)70 mph (112.65 km/h)
75 mph (120.7 km/h)75 mph (120.7 km/h)
80 mph (128.75 km/h)80 mph (128.75 km/h)
85 mph (136.79 km/h)85 mph (136.79 km/h)
90 mph (144.84 km/h)90 mph (144.84 km/h)
95 mph (152.89 km/h)95 mph (152.89 km/h)
100 mph (160.93 km/h)100 mph (160.93 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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