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 355/40r17 Tire Comparison Side By Side
  335/35-17 355/40-17 Difference
Diameter inches (mm) 26.23 (666.3) 28.18 (715.8) 1.95 (49.5) 7.4%
Width inches (mm) 13.19 (335) 13.98 (355) 0.79 (20) 6%
Circum. inches (mm) 82.41 (2093.24) 88.53 (2248.75) 6.12 (155.51) 7.4%
Sidewall Height inches (mm) 4.62 (117.25) 5.59 (142) 0.97 (24.75) 21.1%
Revolutions per mile (km) 768.83 (477.73) 715.66 (444.69) -53.17 (-33.04) -6.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.49 mph (34.58 km/h)
25 mph (40.23 km/h)26.86 mph (43.22 km/h)
30 mph (48.28 km/h)32.23 mph (51.87 km/h)
35 mph (56.33 km/h)37.6 mph (60.51 km/h)
40 mph (64.37 km/h)42.97 mph (69.16 km/h)
45 mph (72.42 km/h)48.34 mph (77.8 km/h)
50 mph (80.47 km/h)53.71 mph (86.45 km/h)
55 mph (88.51 km/h)59.09 mph (95.09 km/h)
60 mph (96.56 km/h)64.46 mph (103.73 km/h)
65 mph (104.61 km/h)69.83 mph (112.38 km/h)
70 mph (112.65 km/h)75.2 mph (121.02 km/h)
75 mph (120.7 km/h)80.57 mph (129.67 km/h)
80 mph (128.75 km/h)85.94 mph (138.31 km/h)
85 mph (136.79 km/h)91.31 mph (146.96 km/h)
90 mph (144.84 km/h)96.69 mph (155.6 km/h)
95 mph (152.89 km/h)102.06 mph (164.25 km/h)
100 mph (160.93 km/h)107.43 mph (172.89 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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