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 150/60r17 Tire Comparison Side By Side
  130/70-17 150/60-17 Difference
Diameter inches (mm) 24.17 (613.8) 24.09 (611.8) -0.08 (-2) -0.3%
Width inches (mm) 5.12 (130) 5.91 (150) 0.79 (20) 15.4%
Circum. inches (mm) 75.92 (1928.31) 75.67 (1922.03) -0.25 (-6.28) -0.3%
Sidewall Height inches (mm) 3.58 (91) 3.54 (90) -0.04 (-1) -1.1%
Revolutions per mile (km) 834.59 (518.59) 837.32 (520.28) 2.73 (1.7) 0.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.93 mph (32.08 km/h)
25 mph (40.23 km/h)24.92 mph (40.1 km/h)
30 mph (48.28 km/h)29.9 mph (48.12 km/h)
35 mph (56.33 km/h)34.89 mph (56.14 km/h)
40 mph (64.37 km/h)39.87 mph (64.16 km/h)
45 mph (72.42 km/h)44.85 mph (72.18 km/h)
50 mph (80.47 km/h)49.84 mph (80.21 km/h)
55 mph (88.51 km/h)54.82 mph (88.23 km/h)
60 mph (96.56 km/h)59.8 mph (96.25 km/h)
65 mph (104.61 km/h)64.79 mph (104.27 km/h)
70 mph (112.65 km/h)69.77 mph (112.29 km/h)
75 mph (120.7 km/h)74.76 mph (120.31 km/h)
80 mph (128.75 km/h)79.74 mph (128.33 km/h)
85 mph (136.79 km/h)84.72 mph (136.35 km/h)
90 mph (144.84 km/h)89.71 mph (144.37 km/h)
95 mph (152.89 km/h)94.69 mph (152.39 km/h)
100 mph (160.93 km/h)99.67 mph (160.41 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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