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 335/35r15 Tire Comparison Side By Side
  335/35-17 335/35-15 Difference
Diameter inches (mm) 26.23 (666.3) 24.23 (615.5) -2 (-50.8) -7.6%
Width inches (mm) 13.19 (335) 13.19 (335) 0 (0) 0%
Circum. inches (mm) 82.41 (2093.24) 76.13 (1933.65) -6.28 (-159.59) -7.6%
Sidewall Height inches (mm) 4.62 (117.25) 4.62 (117.25) 0 (0) 0%
Revolutions per mile (km) 768.83 (477.73) 832.28 (517.16) 63.45 (39.43) 8.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.48 mph (29.73 km/h)
25 mph (40.23 km/h)23.09 mph (37.17 km/h)
30 mph (48.28 km/h)27.71 mph (44.6 km/h)
35 mph (56.33 km/h)32.33 mph (52.03 km/h)
40 mph (64.37 km/h)36.95 mph (59.47 km/h)
45 mph (72.42 km/h)41.57 mph (66.9 km/h)
50 mph (80.47 km/h)46.19 mph (74.33 km/h)
55 mph (88.51 km/h)50.81 mph (81.77 km/h)
60 mph (96.56 km/h)55.43 mph (89.2 km/h)
65 mph (104.61 km/h)60.04 mph (96.63 km/h)
70 mph (112.65 km/h)64.66 mph (104.07 km/h)
75 mph (120.7 km/h)69.28 mph (111.5 km/h)
80 mph (128.75 km/h)73.9 mph (118.93 km/h)
85 mph (136.79 km/h)78.52 mph (126.37 km/h)
90 mph (144.84 km/h)83.14 mph (133.8 km/h)
95 mph (152.89 km/h)87.76 mph (141.23 km/h)
100 mph (160.93 km/h)92.38 mph (148.66 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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