Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
335/35r17 vs 330/35r17 Tire Comparison Side By Side
  335/35-17 330/35-17 Difference
Diameter inches (mm) 26.23 (666.3) 26.09 (662.8) -0.14 (-3.5) -0.5%
Width inches (mm) 13.19 (335) 12.99 (330) -0.2 (-5) -1.5%
Circum. inches (mm) 82.41 (2093.24) 81.98 (2082.25) -0.43 (-11) -0.5%
Sidewall Height inches (mm) 4.62 (117.25) 4.55 (115.5) -0.07 (-1.75) -1.5%
Revolutions per mile (km) 768.83 (477.73) 772.89 (480.25) 4.06 (2.52) 0.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.89 mph (32.02 km/h)
25 mph (40.23 km/h)24.87 mph (40.02 km/h)
30 mph (48.28 km/h)29.84 mph (48.03 km/h)
35 mph (56.33 km/h)34.82 mph (56.03 km/h)
40 mph (64.37 km/h)39.79 mph (64.04 km/h)
45 mph (72.42 km/h)44.76 mph (72.04 km/h)
50 mph (80.47 km/h)49.74 mph (80.04 km/h)
55 mph (88.51 km/h)54.71 mph (88.05 km/h)
60 mph (96.56 km/h)59.68 mph (96.05 km/h)
65 mph (104.61 km/h)64.66 mph (104.06 km/h)
70 mph (112.65 km/h)69.63 mph (112.06 km/h)
75 mph (120.7 km/h)74.61 mph (120.07 km/h)
80 mph (128.75 km/h)79.58 mph (128.07 km/h)
85 mph (136.79 km/h)84.55 mph (136.08 km/h)
90 mph (144.84 km/h)89.53 mph (144.08 km/h)
95 mph (152.89 km/h)94.5 mph (152.08 km/h)
100 mph (160.93 km/h)99.47 mph (160.09 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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