Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/70r13 vs 110/70r14 Tire Comparison Side By Side
  130/70-13 110/70-14 Difference
Diameter inches (mm) 20.17 (512.2) 20.06 (509.6) -0.1 (-2.6) -0.5%
Width inches (mm) 5.12 (130) 4.33 (110) -0.79 (-20) -15.4%
Circum. inches (mm) 63.35 (1609.12) 63.03 (1600.96) -0.32 (-8.17) -0.5%
Sidewall Height inches (mm) 3.58 (91) 3.03 (77) -0.55 (-14) -15.4%
Revolutions per mile (km) 1000.14 (621.46) 1005.24 (624.63) 5.1 (3.17) 0.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.9 mph (32.02 km/h)
25 mph (40.23 km/h)24.87 mph (40.03 km/h)
30 mph (48.28 km/h)29.85 mph (48.04 km/h)
35 mph (56.33 km/h)34.82 mph (56.04 km/h)
40 mph (64.37 km/h)39.8 mph (64.05 km/h)
45 mph (72.42 km/h)44.77 mph (72.05 km/h)
50 mph (80.47 km/h)49.75 mph (80.06 km/h)
55 mph (88.51 km/h)54.72 mph (88.06 km/h)
60 mph (96.56 km/h)59.7 mph (96.07 km/h)
65 mph (104.61 km/h)64.67 mph (104.08 km/h)
70 mph (112.65 km/h)69.64 mph (112.08 km/h)
75 mph (120.7 km/h)74.62 mph (120.09 km/h)
80 mph (128.75 km/h)79.59 mph (128.09 km/h)
85 mph (136.79 km/h)84.57 mph (136.1 km/h)
90 mph (144.84 km/h)89.54 mph (144.11 km/h)
95 mph (152.89 km/h)94.52 mph (152.11 km/h)
100 mph (160.93 km/h)99.49 mph (160.12 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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