Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/25r22 vs 265/30r22 Tire Comparison Side By Side
  285/25-22 265/30-22 Difference
Diameter inches (mm) 27.61 (701.3) 28.26 (717.8) 0.65 (16.5) 2.4%
Width inches (mm) 11.22 (285) 10.43 (265) -0.79 (-20) -7%
Circum. inches (mm) 86.74 (2203.2) 88.78 (2255.04) 2.04 (51.84) 2.4%
Sidewall Height inches (mm) 2.81 (71.25) 3.13 (79.5) 0.32 (8.25) 11.6%
Revolutions per mile (km) 730.46 (453.88) 713.67 (443.45) -16.79 (-10.43) -2.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.47 mph (32.94 km/h)
25 mph (40.23 km/h)25.59 mph (41.18 km/h)
30 mph (48.28 km/h)30.71 mph (49.42 km/h)
35 mph (56.33 km/h)35.82 mph (57.65 km/h)
40 mph (64.37 km/h)40.94 mph (65.89 km/h)
45 mph (72.42 km/h)46.06 mph (74.12 km/h)
50 mph (80.47 km/h)51.18 mph (82.36 km/h)
55 mph (88.51 km/h)56.29 mph (90.6 km/h)
60 mph (96.56 km/h)61.41 mph (98.83 km/h)
65 mph (104.61 km/h)66.53 mph (107.07 km/h)
70 mph (112.65 km/h)71.65 mph (115.3 km/h)
75 mph (120.7 km/h)76.76 mph (123.54 km/h)
80 mph (128.75 km/h)81.88 mph (131.78 km/h)
85 mph (136.79 km/h)87 mph (140.01 km/h)
90 mph (144.84 km/h)92.12 mph (148.25 km/h)
95 mph (152.89 km/h)97.24 mph (156.49 km/h)
100 mph (160.93 km/h)102.35 mph (164.72 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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