Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/70r17 vs 295/75r16 Tire Comparison Side By Side
  285/70-17 295/75-16 Difference
Diameter inches (mm) 32.71 (830.8) 33.42 (848.9) 0.71 (18.1) 2.2%
Width inches (mm) 11.22 (285) 11.61 (295) 0.39 (10) 3.5%
Circum. inches (mm) 102.76 (2610.04) 105 (2666.9) 2.24 (56.86) 2.2%
Sidewall Height inches (mm) 7.85 (199.5) 8.71 (221.25) 0.86 (21.75) 10.9%
Revolutions per mile (km) 616.6 (383.14) 603.45 (374.97) -13.15 (-8.17) -2.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.44 mph (32.89 km/h)
25 mph (40.23 km/h)25.54 mph (41.11 km/h)
30 mph (48.28 km/h)30.65 mph (49.33 km/h)
35 mph (56.33 km/h)35.76 mph (57.55 km/h)
40 mph (64.37 km/h)40.87 mph (65.78 km/h)
45 mph (72.42 km/h)45.98 mph (74 km/h)
50 mph (80.47 km/h)51.09 mph (82.22 km/h)
55 mph (88.51 km/h)56.2 mph (90.44 km/h)
60 mph (96.56 km/h)61.31 mph (98.66 km/h)
65 mph (104.61 km/h)66.42 mph (106.89 km/h)
70 mph (112.65 km/h)71.53 mph (115.11 km/h)
75 mph (120.7 km/h)76.63 mph (123.33 km/h)
80 mph (128.75 km/h)81.74 mph (131.55 km/h)
85 mph (136.79 km/h)86.85 mph (139.77 km/h)
90 mph (144.84 km/h)91.96 mph (148 km/h)
95 mph (152.89 km/h)97.07 mph (156.22 km/h)
100 mph (160.93 km/h)102.18 mph (164.44 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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