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 130/60r10 Tire Comparison Side By Side
  130/90-10 130/60-10 Difference
Diameter inches (mm) 19.21 (488) 16.14 (410) -3.07 (-78) -16%
Width inches (mm) 5.12 (130) 5.12 (130) 0 (0) 0%
Circum. inches (mm) 60.36 (1533.1) 50.71 (1288.05) -9.65 (-245.04) -16%
Sidewall Height inches (mm) 4.61 (117) 3.07 (78) -1.54 (-39) -33.3%
Revolutions per mile (km) 1049.73 (652.27) 1249.44 (776.36) 199.71 (124.09) 19%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)16.8 mph (27.04 km/h)
25 mph (40.23 km/h)21 mph (33.8 km/h)
30 mph (48.28 km/h)25.2 mph (40.56 km/h)
35 mph (56.33 km/h)29.41 mph (47.32 km/h)
40 mph (64.37 km/h)33.61 mph (54.08 km/h)
45 mph (72.42 km/h)37.81 mph (60.85 km/h)
50 mph (80.47 km/h)42.01 mph (67.61 km/h)
55 mph (88.51 km/h)46.21 mph (74.37 km/h)
60 mph (96.56 km/h)50.41 mph (81.13 km/h)
65 mph (104.61 km/h)54.61 mph (87.89 km/h)
70 mph (112.65 km/h)58.81 mph (94.65 km/h)
75 mph (120.7 km/h)63.01 mph (101.41 km/h)
80 mph (128.75 km/h)67.21 mph (108.17 km/h)
85 mph (136.79 km/h)71.41 mph (114.93 km/h)
90 mph (144.84 km/h)75.61 mph (121.69 km/h)
95 mph (152.89 km/h)79.82 mph (128.45 km/h)
100 mph (160.93 km/h)84.02 mph (135.21 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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