Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/90r10 vs 150/80r10 Tire Comparison Side By Side
  130/90-10 150/80-10 Difference
Diameter inches (mm) 19.21 (488) 19.45 (494) 0.24 (6) 1.2%
Width inches (mm) 5.12 (130) 5.91 (150) 0.79 (20) 15.4%
Circum. inches (mm) 60.36 (1533.1) 61.1 (1551.95) 0.74 (18.85) 1.2%
Sidewall Height inches (mm) 4.61 (117) 4.72 (120) 0.12 (3) 2.6%
Revolutions per mile (km) 1049.73 (652.27) 1036.98 (644.35) -12.75 (-7.92) -1.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.25 mph (32.58 km/h)
25 mph (40.23 km/h)25.31 mph (40.73 km/h)
30 mph (48.28 km/h)30.37 mph (48.87 km/h)
35 mph (56.33 km/h)35.43 mph (57.02 km/h)
40 mph (64.37 km/h)40.49 mph (65.17 km/h)
45 mph (72.42 km/h)45.55 mph (73.31 km/h)
50 mph (80.47 km/h)50.61 mph (81.46 km/h)
55 mph (88.51 km/h)55.68 mph (89.6 km/h)
60 mph (96.56 km/h)60.74 mph (97.75 km/h)
65 mph (104.61 km/h)65.8 mph (105.89 km/h)
70 mph (112.65 km/h)70.86 mph (114.04 km/h)
75 mph (120.7 km/h)75.92 mph (122.19 km/h)
80 mph (128.75 km/h)80.98 mph (130.33 km/h)
85 mph (136.79 km/h)86.05 mph (138.48 km/h)
90 mph (144.84 km/h)91.11 mph (146.62 km/h)
95 mph (152.89 km/h)96.17 mph (154.77 km/h)
100 mph (160.93 km/h)101.23 mph (162.91 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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