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 100/90r10 Tire Comparison Side By Side
  130/90-10 100/90-10 Difference
Diameter inches (mm) 19.21 (488) 17.09 (434) -2.13 (-54) -11.1%
Width inches (mm) 5.12 (130) 3.94 (100) -1.18 (-30) -23.1%
Circum. inches (mm) 60.36 (1533.1) 53.68 (1363.45) -6.68 (-169.65) -11.1%
Sidewall Height inches (mm) 4.61 (117) 3.54 (90) -1.06 (-27) -23.1%
Revolutions per mile (km) 1049.73 (652.27) 1180.35 (733.43) 130.61 (81.16) 12.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.79 mph (28.63 km/h)
25 mph (40.23 km/h)22.23 mph (35.78 km/h)
30 mph (48.28 km/h)26.68 mph (42.94 km/h)
35 mph (56.33 km/h)31.13 mph (50.09 km/h)
40 mph (64.37 km/h)35.57 mph (57.25 km/h)
45 mph (72.42 km/h)40.02 mph (64.41 km/h)
50 mph (80.47 km/h)44.47 mph (71.56 km/h)
55 mph (88.51 km/h)48.91 mph (78.72 km/h)
60 mph (96.56 km/h)53.36 mph (85.88 km/h)
65 mph (104.61 km/h)57.81 mph (93.03 km/h)
70 mph (112.65 km/h)62.25 mph (100.19 km/h)
75 mph (120.7 km/h)66.7 mph (107.34 km/h)
80 mph (128.75 km/h)71.15 mph (114.5 km/h)
85 mph (136.79 km/h)75.59 mph (121.66 km/h)
90 mph (144.84 km/h)80.04 mph (128.81 km/h)
95 mph (152.89 km/h)84.49 mph (135.97 km/h)
100 mph (160.93 km/h)88.93 mph (143.13 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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