Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
110/70r17 vs 110/60r17 Tire Comparison Side By Side
  110/70-17 110/60-17 Difference
Diameter inches (mm) 23.06 (585.8) 22.2 (563.8) -0.87 (-22) -3.8%
Width inches (mm) 4.33 (110) 4.33 (110) 0 (0) 0%
Circum. inches (mm) 72.45 (1840.34) 69.73 (1771.23) -2.72 (-69.12) -3.8%
Sidewall Height inches (mm) 3.03 (77) 2.6 (66) -0.43 (-11) -14.3%
Revolutions per mile (km) 874.48 (543.38) 908.6 (564.58) 34.12 (21.2) 3.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.25 mph (30.98 km/h)
25 mph (40.23 km/h)24.06 mph (38.72 km/h)
30 mph (48.28 km/h)28.87 mph (46.47 km/h)
35 mph (56.33 km/h)33.69 mph (54.21 km/h)
40 mph (64.37 km/h)38.5 mph (61.96 km/h)
45 mph (72.42 km/h)43.31 mph (69.7 km/h)
50 mph (80.47 km/h)48.12 mph (77.45 km/h)
55 mph (88.51 km/h)52.93 mph (85.19 km/h)
60 mph (96.56 km/h)57.75 mph (92.93 km/h)
65 mph (104.61 km/h)62.56 mph (100.68 km/h)
70 mph (112.65 km/h)67.37 mph (108.42 km/h)
75 mph (120.7 km/h)72.18 mph (116.17 km/h)
80 mph (128.75 km/h)77 mph (123.91 km/h)
85 mph (136.79 km/h)81.81 mph (131.66 km/h)
90 mph (144.84 km/h)86.62 mph (139.4 km/h)
95 mph (152.89 km/h)91.43 mph (147.15 km/h)
100 mph (160.93 km/h)96.24 mph (154.89 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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