Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/30r22 vs 265/35r22 Tire Comparison Side By Side
  285/30-22 265/35-22 Difference
Diameter inches (mm) 28.73 (729.8) 29.3 (744.3) 0.57 (14.5) 2%
Width inches (mm) 11.22 (285) 10.43 (265) -0.79 (-20) -7%
Circum. inches (mm) 90.27 (2292.73) 92.06 (2338.29) 1.79 (45.55) 2%
Sidewall Height inches (mm) 3.37 (85.5) 3.65 (92.75) 0.29 (7.25) 8.5%
Revolutions per mile (km) 701.93 (436.16) 688.26 (427.66) -13.67 (-8.5) -1.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.4 mph (32.83 km/h)
25 mph (40.23 km/h)25.5 mph (41.03 km/h)
30 mph (48.28 km/h)30.6 mph (49.24 km/h)
35 mph (56.33 km/h)35.7 mph (57.45 km/h)
40 mph (64.37 km/h)40.79 mph (65.65 km/h)
45 mph (72.42 km/h)45.89 mph (73.86 km/h)
50 mph (80.47 km/h)50.99 mph (82.07 km/h)
55 mph (88.51 km/h)56.09 mph (90.27 km/h)
60 mph (96.56 km/h)61.19 mph (98.48 km/h)
65 mph (104.61 km/h)66.29 mph (106.69 km/h)
70 mph (112.65 km/h)71.39 mph (114.89 km/h)
75 mph (120.7 km/h)76.49 mph (123.1 km/h)
80 mph (128.75 km/h)81.59 mph (131.31 km/h)
85 mph (136.79 km/h)86.69 mph (139.51 km/h)
90 mph (144.84 km/h)91.79 mph (147.72 km/h)
95 mph (152.89 km/h)96.89 mph (155.93 km/h)
100 mph (160.93 km/h)101.99 mph (164.13 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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