Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/40r19 vs 295/35r19 Tire Comparison Side By Side
  285/40-19 295/35-19 Difference
Diameter inches (mm) 27.98 (710.6) 27.13 (689.1) -0.85 (-21.5) -3%
Width inches (mm) 11.22 (285) 11.61 (295) 0.39 (10) 3.5%
Circum. inches (mm) 87.89 (2232.42) 85.23 (2164.87) -2.66 (-67.54) -3%
Sidewall Height inches (mm) 4.49 (114) 4.06 (103.25) -0.42 (-10.75) -9.4%
Revolutions per mile (km) 720.9 (447.94) 743.39 (461.92) 22.49 (13.98) 3.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.39 mph (31.21 km/h)
25 mph (40.23 km/h)24.24 mph (39.02 km/h)
30 mph (48.28 km/h)29.09 mph (46.82 km/h)
35 mph (56.33 km/h)33.94 mph (54.62 km/h)
40 mph (64.37 km/h)38.79 mph (62.43 km/h)
45 mph (72.42 km/h)43.64 mph (70.23 km/h)
50 mph (80.47 km/h)48.49 mph (78.03 km/h)
55 mph (88.51 km/h)53.34 mph (85.84 km/h)
60 mph (96.56 km/h)58.18 mph (93.64 km/h)
65 mph (104.61 km/h)63.03 mph (101.44 km/h)
70 mph (112.65 km/h)67.88 mph (109.25 km/h)
75 mph (120.7 km/h)72.73 mph (117.05 km/h)
80 mph (128.75 km/h)77.58 mph (124.85 km/h)
85 mph (136.79 km/h)82.43 mph (132.66 km/h)
90 mph (144.84 km/h)87.28 mph (140.46 km/h)
95 mph (152.89 km/h)92.13 mph (148.26 km/h)
100 mph (160.93 km/h)96.97 mph (156.07 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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