Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/70r17 vs 110/70r17 Tire Comparison Side By Side
  130/70-17 110/70-17 Difference
Diameter inches (mm) 24.17 (613.8) 23.06 (585.8) -1.1 (-28) -4.6%
Width inches (mm) 5.12 (130) 4.33 (110) -0.79 (-20) -15.4%
Circum. inches (mm) 75.92 (1928.31) 72.45 (1840.34) -3.46 (-87.96) -4.6%
Sidewall Height inches (mm) 3.58 (91) 3.03 (77) -0.55 (-14) -15.4%
Revolutions per mile (km) 834.59 (518.59) 874.48 (543.38) 39.89 (24.79) 4.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.09 mph (30.72 km/h)
25 mph (40.23 km/h)23.86 mph (38.4 km/h)
30 mph (48.28 km/h)28.63 mph (46.08 km/h)
35 mph (56.33 km/h)33.4 mph (53.76 km/h)
40 mph (64.37 km/h)38.18 mph (61.44 km/h)
45 mph (72.42 km/h)42.95 mph (69.12 km/h)
50 mph (80.47 km/h)47.72 mph (76.8 km/h)
55 mph (88.51 km/h)52.49 mph (84.48 km/h)
60 mph (96.56 km/h)57.26 mph (92.16 km/h)
65 mph (104.61 km/h)62.03 mph (99.84 km/h)
70 mph (112.65 km/h)66.81 mph (107.52 km/h)
75 mph (120.7 km/h)71.58 mph (115.19 km/h)
80 mph (128.75 km/h)76.35 mph (122.87 km/h)
85 mph (136.79 km/h)81.12 mph (130.55 km/h)
90 mph (144.84 km/h)85.89 mph (138.23 km/h)
95 mph (152.89 km/h)90.67 mph (145.91 km/h)
100 mph (160.93 km/h)95.44 mph (153.59 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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