Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
110/80r19 vs 160/60r17 Tire Comparison Side By Side
  110/80-19 160/60-17 Difference
Diameter inches (mm) 25.93 (658.6) 24.56 (623.8) -1.37 (-34.8) -5.3%
Width inches (mm) 4.33 (110) 6.3 (160) 1.97 (50) 45.5%
Circum. inches (mm) 81.46 (2069.05) 77.15 (1959.73) -4.3 (-109.33) -5.3%
Sidewall Height inches (mm) 3.46 (88) 3.78 (96) 0.31 (8) 9.1%
Revolutions per mile (km) 777.82 (483.31) 821.21 (510.27) 43.39 (26.96) 5.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.94 mph (30.49 km/h)
25 mph (40.23 km/h)23.68 mph (38.11 km/h)
30 mph (48.28 km/h)28.41 mph (45.73 km/h)
35 mph (56.33 km/h)33.15 mph (53.35 km/h)
40 mph (64.37 km/h)37.89 mph (60.97 km/h)
45 mph (72.42 km/h)42.62 mph (68.59 km/h)
50 mph (80.47 km/h)47.36 mph (76.22 km/h)
55 mph (88.51 km/h)52.09 mph (83.84 km/h)
60 mph (96.56 km/h)56.83 mph (91.46 km/h)
65 mph (104.61 km/h)61.57 mph (99.08 km/h)
70 mph (112.65 km/h)66.3 mph (106.7 km/h)
75 mph (120.7 km/h)71.04 mph (114.32 km/h)
80 mph (128.75 km/h)75.77 mph (121.94 km/h)
85 mph (136.79 km/h)80.51 mph (129.57 km/h)
90 mph (144.84 km/h)85.24 mph (137.19 km/h)
95 mph (152.89 km/h)89.98 mph (144.81 km/h)
100 mph (160.93 km/h)94.72 mph (152.43 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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