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 275/40r17 Tire Comparison Side By Side
  335/35-17 275/40-17 Difference
Diameter inches (mm) 26.23 (666.3) 25.66 (651.8) -0.57 (-14.5) -2.2%
Width inches (mm) 13.19 (335) 10.83 (275) -2.36 (-60) -17.9%
Circum. inches (mm) 82.41 (2093.24) 80.62 (2047.69) -1.79 (-45.55) -2.2%
Sidewall Height inches (mm) 4.62 (117.25) 4.33 (110) -0.29 (-7.25) -6.2%
Revolutions per mile (km) 768.83 (477.73) 785.93 (488.35) 17.1 (10.63) 2.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.56 mph (31.49 km/h)
25 mph (40.23 km/h)24.46 mph (39.36 km/h)
30 mph (48.28 km/h)29.35 mph (47.23 km/h)
35 mph (56.33 km/h)34.24 mph (55.1 km/h)
40 mph (64.37 km/h)39.13 mph (62.97 km/h)
45 mph (72.42 km/h)44.02 mph (70.84 km/h)
50 mph (80.47 km/h)48.91 mph (78.72 km/h)
55 mph (88.51 km/h)53.8 mph (86.59 km/h)
60 mph (96.56 km/h)58.69 mph (94.46 km/h)
65 mph (104.61 km/h)63.59 mph (102.33 km/h)
70 mph (112.65 km/h)68.48 mph (110.2 km/h)
75 mph (120.7 km/h)73.37 mph (118.07 km/h)
80 mph (128.75 km/h)78.26 mph (125.95 km/h)
85 mph (136.79 km/h)83.15 mph (133.82 km/h)
90 mph (144.84 km/h)88.04 mph (141.69 km/h)
95 mph (152.89 km/h)92.93 mph (149.56 km/h)
100 mph (160.93 km/h)97.82 mph (157.43 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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