Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/35r19 vs 305/35r19 Tire Comparison Side By Side
  295/35-19 305/35-19 Difference
Diameter inches (mm) 27.13 (689.1) 27.41 (696.1) 0.28 (7) 1%
Width inches (mm) 11.61 (295) 12.01 (305) 0.39 (10) 3.4%
Circum. inches (mm) 85.23 (2164.87) 86.1 (2186.86) 0.87 (21.99) 1%
Sidewall Height inches (mm) 4.06 (103.25) 4.2 (106.75) 0.14 (3.5) 3.4%
Revolutions per mile (km) 743.39 (461.92) 735.91 (457.28) -7.48 (-4.65) -1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.2 mph (32.51 km/h)
25 mph (40.23 km/h)25.25 mph (40.64 km/h)
30 mph (48.28 km/h)30.3 mph (48.77 km/h)
35 mph (56.33 km/h)35.36 mph (56.9 km/h)
40 mph (64.37 km/h)40.41 mph (65.03 km/h)
45 mph (72.42 km/h)45.46 mph (73.16 km/h)
50 mph (80.47 km/h)50.51 mph (81.28 km/h)
55 mph (88.51 km/h)55.56 mph (89.41 km/h)
60 mph (96.56 km/h)60.61 mph (97.54 km/h)
65 mph (104.61 km/h)65.66 mph (105.67 km/h)
70 mph (112.65 km/h)70.71 mph (113.8 km/h)
75 mph (120.7 km/h)75.76 mph (121.93 km/h)
80 mph (128.75 km/h)80.81 mph (130.06 km/h)
85 mph (136.79 km/h)85.86 mph (138.18 km/h)
90 mph (144.84 km/h)90.91 mph (146.31 km/h)
95 mph (152.89 km/h)95.97 mph (154.44 km/h)
100 mph (160.93 km/h)101.02 mph (162.57 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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