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 305/35r17 Tire Comparison Side By Side
  335/35-17 305/35-17 Difference
Diameter inches (mm) 26.23 (666.3) 25.41 (645.3) -0.83 (-21) -3.2%
Width inches (mm) 13.19 (335) 12.01 (305) -1.18 (-30) -9%
Circum. inches (mm) 82.41 (2093.24) 79.81 (2027.27) -2.6 (-65.97) -3.2%
Sidewall Height inches (mm) 4.62 (117.25) 4.2 (106.75) -0.41 (-10.5) -9%
Revolutions per mile (km) 768.83 (477.73) 793.85 (493.27) 25.02 (15.55) 3.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.37 mph (31.17 km/h)
25 mph (40.23 km/h)24.21 mph (38.97 km/h)
30 mph (48.28 km/h)29.05 mph (46.76 km/h)
35 mph (56.33 km/h)33.9 mph (54.55 km/h)
40 mph (64.37 km/h)38.74 mph (62.34 km/h)
45 mph (72.42 km/h)43.58 mph (70.14 km/h)
50 mph (80.47 km/h)48.42 mph (77.93 km/h)
55 mph (88.51 km/h)53.27 mph (85.72 km/h)
60 mph (96.56 km/h)58.11 mph (93.52 km/h)
65 mph (104.61 km/h)62.95 mph (101.31 km/h)
70 mph (112.65 km/h)67.79 mph (109.1 km/h)
75 mph (120.7 km/h)72.64 mph (116.9 km/h)
80 mph (128.75 km/h)77.48 mph (124.69 km/h)
85 mph (136.79 km/h)82.32 mph (132.48 km/h)
90 mph (144.84 km/h)87.16 mph (140.28 km/h)
95 mph (152.89 km/h)92.01 mph (148.07 km/h)
100 mph (160.93 km/h)96.85 mph (155.86 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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