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 275/35r22 Tire Comparison Side By Side
  285/30-22 275/35-22 Difference
Diameter inches (mm) 28.73 (729.8) 29.58 (751.3) 0.85 (21.5) 2.9%
Width inches (mm) 11.22 (285) 10.83 (275) -0.39 (-10) -3.5%
Circum. inches (mm) 90.27 (2292.73) 92.92 (2360.28) 2.66 (67.54) 2.9%
Sidewall Height inches (mm) 3.37 (85.5) 3.79 (96.25) 0.42 (10.75) 12.6%
Revolutions per mile (km) 701.93 (436.16) 681.84 (423.68) -20.09 (-12.48) -2.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.59 mph (33.14 km/h)
25 mph (40.23 km/h)25.74 mph (41.42 km/h)
30 mph (48.28 km/h)30.88 mph (49.7 km/h)
35 mph (56.33 km/h)36.03 mph (57.99 km/h)
40 mph (64.37 km/h)41.18 mph (66.27 km/h)
45 mph (72.42 km/h)46.33 mph (74.55 km/h)
50 mph (80.47 km/h)51.47 mph (82.84 km/h)
55 mph (88.51 km/h)56.62 mph (91.12 km/h)
60 mph (96.56 km/h)61.77 mph (99.41 km/h)
65 mph (104.61 km/h)66.91 mph (107.69 km/h)
70 mph (112.65 km/h)72.06 mph (115.97 km/h)
75 mph (120.7 km/h)77.21 mph (124.26 km/h)
80 mph (128.75 km/h)82.36 mph (132.54 km/h)
85 mph (136.79 km/h)87.5 mph (140.82 km/h)
90 mph (144.84 km/h)92.65 mph (149.11 km/h)
95 mph (152.89 km/h)97.8 mph (157.39 km/h)
100 mph (160.93 km/h)102.95 mph (165.68 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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