Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/90r17 vs 150/80r17 Tire Comparison Side By Side
  130/90-17 150/80-17 Difference
Diameter inches (mm) 26.21 (665.8) 26.45 (671.8) 0.24 (6) 0.9%
Width inches (mm) 5.12 (130) 5.91 (150) 0.79 (20) 15.4%
Circum. inches (mm) 82.35 (2091.67) 83.09 (2110.52) 0.74 (18.85) 0.9%
Sidewall Height inches (mm) 4.61 (117) 4.72 (120) 0.12 (3) 2.6%
Revolutions per mile (km) 769.41 (478.09) 762.53 (473.82) -6.87 (-4.27) -0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.18 mph (32.48 km/h)
25 mph (40.23 km/h)25.23 mph (40.6 km/h)
30 mph (48.28 km/h)30.27 mph (48.72 km/h)
35 mph (56.33 km/h)35.32 mph (56.83 km/h)
40 mph (64.37 km/h)40.36 mph (64.95 km/h)
45 mph (72.42 km/h)45.41 mph (73.07 km/h)
50 mph (80.47 km/h)50.45 mph (81.19 km/h)
55 mph (88.51 km/h)55.5 mph (89.31 km/h)
60 mph (96.56 km/h)60.54 mph (97.43 km/h)
65 mph (104.61 km/h)65.59 mph (105.55 km/h)
70 mph (112.65 km/h)70.63 mph (113.67 km/h)
75 mph (120.7 km/h)75.68 mph (121.79 km/h)
80 mph (128.75 km/h)80.72 mph (129.91 km/h)
85 mph (136.79 km/h)85.77 mph (138.03 km/h)
90 mph (144.84 km/h)90.81 mph (146.15 km/h)
95 mph (152.89 km/h)95.86 mph (154.27 km/h)
100 mph (160.93 km/h)100.9 mph (162.39 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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