Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/35r19 vs 225/35r19 Tire Comparison Side By Side
  215/35-19 225/35-19 Difference
Diameter inches (mm) 24.93 (633.1) 25.2 (640.1) 0.28 (7) 1.1%
Width inches (mm) 8.46 (215) 8.86 (225) 0.39 (10) 4.7%
Circum. inches (mm) 78.3 (1988.94) 79.17 (2010.93) 0.87 (21.99) 1.1%
Sidewall Height inches (mm) 2.96 (75.25) 3.1 (78.75) 0.14 (3.5) 4.7%
Revolutions per mile (km) 809.15 (502.78) 800.3 (497.28) -8.85 (-5.5) -1.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.22 mph (32.54 km/h)
25 mph (40.23 km/h)25.28 mph (40.68 km/h)
30 mph (48.28 km/h)30.33 mph (48.81 km/h)
35 mph (56.33 km/h)35.39 mph (56.95 km/h)
40 mph (64.37 km/h)40.44 mph (65.09 km/h)
45 mph (72.42 km/h)45.5 mph (73.22 km/h)
50 mph (80.47 km/h)50.55 mph (81.36 km/h)
55 mph (88.51 km/h)55.61 mph (89.49 km/h)
60 mph (96.56 km/h)60.66 mph (97.63 km/h)
65 mph (104.61 km/h)65.72 mph (105.76 km/h)
70 mph (112.65 km/h)70.77 mph (113.9 km/h)
75 mph (120.7 km/h)75.83 mph (122.04 km/h)
80 mph (128.75 km/h)80.88 mph (130.17 km/h)
85 mph (136.79 km/h)85.94 mph (138.31 km/h)
90 mph (144.84 km/h)91 mph (146.44 km/h)
95 mph (152.89 km/h)96.05 mph (154.58 km/h)
100 mph (160.93 km/h)101.11 mph (162.71 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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