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 335/60r20 Tire Comparison Side By Side
  335/35-17 335/60-20 Difference
Diameter inches (mm) 26.23 (666.3) 35.83 (910) 9.59 (243.7) 36.6%
Width inches (mm) 13.19 (335) 13.19 (335) 0 (0) 0%
Circum. inches (mm) 82.41 (2093.24) 112.55 (2858.85) 30.14 (765.61) 36.6%
Sidewall Height inches (mm) 4.62 (117.25) 7.91 (201) 3.3 (83.75) 71.4%
Revolutions per mile (km) 768.83 (477.73) 562.93 (349.79) -205.89 (-127.94) -26.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)27.32 mph (43.96 km/h)
25 mph (40.23 km/h)34.14 mph (54.95 km/h)
30 mph (48.28 km/h)40.97 mph (65.94 km/h)
35 mph (56.33 km/h)47.8 mph (76.93 km/h)
40 mph (64.37 km/h)54.63 mph (87.92 km/h)
45 mph (72.42 km/h)61.46 mph (98.91 km/h)
50 mph (80.47 km/h)68.29 mph (109.9 km/h)
55 mph (88.51 km/h)75.12 mph (120.89 km/h)
60 mph (96.56 km/h)81.95 mph (131.88 km/h)
65 mph (104.61 km/h)88.77 mph (142.87 km/h)
70 mph (112.65 km/h)95.6 mph (153.86 km/h)
75 mph (120.7 km/h)102.43 mph (164.85 km/h)
80 mph (128.75 km/h)109.26 mph (175.84 km/h)
85 mph (136.79 km/h)116.09 mph (186.83 km/h)
90 mph (144.84 km/h)122.92 mph (197.82 km/h)
95 mph (152.89 km/h)129.75 mph (208.81 km/h)
100 mph (160.93 km/h)136.58 mph (219.8 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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