Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/55r16 vs 205/60r16 Tire Comparison Side By Side
  205/55-16 205/60-16 Difference
Diameter inches (mm) 24.88 (631.9) 25.69 (652.4) 0.81 (20.5) 3.2%
Width inches (mm) 8.07 (205) 8.07 (205) 0 (0) 0%
Circum. inches (mm) 78.16 (1985.17) 80.69 (2049.58) 2.54 (64.4) 3.2%
Sidewall Height inches (mm) 4.44 (112.75) 4.84 (123) 0.4 (10.25) 9.1%
Revolutions per mile (km) 810.68 (503.73) 785.21 (487.91) -25.47 (-15.83) -3.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.65 mph (33.23 km/h)
25 mph (40.23 km/h)25.81 mph (41.54 km/h)
30 mph (48.28 km/h)30.97 mph (49.85 km/h)
35 mph (56.33 km/h)36.14 mph (58.15 km/h)
40 mph (64.37 km/h)41.3 mph (66.46 km/h)
45 mph (72.42 km/h)46.46 mph (74.77 km/h)
50 mph (80.47 km/h)51.62 mph (83.08 km/h)
55 mph (88.51 km/h)56.78 mph (91.39 km/h)
60 mph (96.56 km/h)61.95 mph (99.69 km/h)
65 mph (104.61 km/h)67.11 mph (108 km/h)
70 mph (112.65 km/h)72.27 mph (116.31 km/h)
75 mph (120.7 km/h)77.43 mph (124.62 km/h)
80 mph (128.75 km/h)82.6 mph (132.92 km/h)
85 mph (136.79 km/h)87.76 mph (141.23 km/h)
90 mph (144.84 km/h)92.92 mph (149.54 km/h)
95 mph (152.89 km/h)98.08 mph (157.85 km/h)
100 mph (160.93 km/h)103.24 mph (166.16 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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