Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
35/12.5r17 vs 295/70r17 Tire Comparison Side By Side
  35/12.5-17 295/70-17 Difference
Diameter inches (mm) 35.03 (889.72) 33.26 (844.8) -1.77 (-44.92) -5%
Width inches (mm) 12.52 (318) 11.61 (295) -0.91 (-23) -7.2%
Circum. inches (mm) 110.04 (2795.14) 104.49 (2654.02) -5.56 (-141.12) -5%
Sidewall Height inches (mm) 9.01 (228.96) 8.13 (206.5) -0.88 (-22.46) -9.8%
Revolutions per mile (km) 575.77 (357.76) 606.38 (376.79) 30.61 (19.02) 5.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.99 mph (30.56 km/h)
25 mph (40.23 km/h)23.74 mph (38.2 km/h)
30 mph (48.28 km/h)28.49 mph (45.84 km/h)
35 mph (56.33 km/h)33.23 mph (53.48 km/h)
40 mph (64.37 km/h)37.98 mph (61.12 km/h)
45 mph (72.42 km/h)42.73 mph (68.76 km/h)
50 mph (80.47 km/h)47.48 mph (76.4 km/h)
55 mph (88.51 km/h)52.22 mph (84.05 km/h)
60 mph (96.56 km/h)56.97 mph (91.69 km/h)
65 mph (104.61 km/h)61.72 mph (99.33 km/h)
70 mph (112.65 km/h)66.47 mph (106.97 km/h)
75 mph (120.7 km/h)71.21 mph (114.61 km/h)
80 mph (128.75 km/h)75.96 mph (122.25 km/h)
85 mph (136.79 km/h)80.71 mph (129.89 km/h)
90 mph (144.84 km/h)85.46 mph (137.53 km/h)
95 mph (152.89 km/h)90.2 mph (145.17 km/h)
100 mph (160.93 km/h)94.95 mph (152.81 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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