Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
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195/60r13 vs 206/60r13 Tire Comparison Side By Side
  195/60-13 206/60-13 Difference
Diameter inches (mm) 22.21 (564.2) 22.73 (577.4) 0.52 (13.2) 2.3%
Width inches (mm) 7.68 (195) 8.11 (206) 0.43 (11) 5.6%
Circum. inches (mm) 69.78 (1772.49) 71.42 (1813.96) 1.63 (41.47) 2.3%
Sidewall Height inches (mm) 4.61 (117) 4.87 (123.6) 0.26 (6.6) 5.6%
Revolutions per mile (km) 907.96 (564.18) 887.2 (551.28) -20.76 (-12.9) -2.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.47 mph (32.94 km/h)
25 mph (40.23 km/h)25.58 mph (41.17 km/h)
30 mph (48.28 km/h)30.7 mph (49.41 km/h)
35 mph (56.33 km/h)35.82 mph (57.64 km/h)
40 mph (64.37 km/h)40.94 mph (65.88 km/h)
45 mph (72.42 km/h)46.05 mph (74.11 km/h)
50 mph (80.47 km/h)51.17 mph (82.35 km/h)
55 mph (88.51 km/h)56.29 mph (90.58 km/h)
60 mph (96.56 km/h)61.4 mph (98.82 km/h)
65 mph (104.61 km/h)66.52 mph (107.05 km/h)
70 mph (112.65 km/h)71.64 mph (115.29 km/h)
75 mph (120.7 km/h)76.75 mph (123.52 km/h)
80 mph (128.75 km/h)81.87 mph (131.76 km/h)
85 mph (136.79 km/h)86.99 mph (139.99 km/h)
90 mph (144.84 km/h)92.11 mph (148.23 km/h)
95 mph (152.89 km/h)97.22 mph (156.46 km/h)
100 mph (160.93 km/h)102.34 mph (164.7 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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