Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/25r22 vs 225/25r22 Tire Comparison Side By Side
  275/25-22 225/25-22 Difference
Diameter inches (mm) 27.41 (696.3) 26.43 (671.3) -0.98 (-25) -3.6%
Width inches (mm) 10.83 (275) 8.86 (225) -1.97 (-50) -18.2%
Circum. inches (mm) 86.12 (2187.49) 83.03 (2108.95) -3.09 (-78.54) -3.6%
Sidewall Height inches (mm) 2.71 (68.75) 2.21 (56.25) -0.49 (-12.5) -18.2%
Revolutions per mile (km) 735.7 (457.14) 763.1 (474.17) 27.4 (17.02) 3.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.28 mph (31.03 km/h)
25 mph (40.23 km/h)24.1 mph (38.79 km/h)
30 mph (48.28 km/h)28.92 mph (46.55 km/h)
35 mph (56.33 km/h)33.74 mph (54.3 km/h)
40 mph (64.37 km/h)38.56 mph (62.06 km/h)
45 mph (72.42 km/h)43.38 mph (69.82 km/h)
50 mph (80.47 km/h)48.2 mph (77.58 km/h)
55 mph (88.51 km/h)53.03 mph (85.34 km/h)
60 mph (96.56 km/h)57.85 mph (93.09 km/h)
65 mph (104.61 km/h)62.67 mph (100.85 km/h)
70 mph (112.65 km/h)67.49 mph (108.61 km/h)
75 mph (120.7 km/h)72.31 mph (116.37 km/h)
80 mph (128.75 km/h)77.13 mph (124.13 km/h)
85 mph (136.79 km/h)81.95 mph (131.88 km/h)
90 mph (144.84 km/h)86.77 mph (139.64 km/h)
95 mph (152.89 km/h)91.59 mph (147.4 km/h)
100 mph (160.93 km/h)96.41 mph (155.16 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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