Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
225/80r22.5 vs 295/75r22.5 Tire Comparison Side By Side
  225/80-22.5 295/75-22.5 Difference
Diameter inches (mm) 36.67 (931.5) 39.92 (1014) 3.25 (82.5) 8.9%
Width inches (mm) 8.86 (225) 11.61 (295) 2.76 (70) 31.1%
Circum. inches (mm) 115.21 (2926.39) 125.42 (3185.57) 10.2 (259.18) 8.9%
Sidewall Height inches (mm) 7.09 (180) 8.71 (221.25) 1.62 (41.25) 22.9%
Revolutions per mile (km) 549.94 (341.72) 505.2 (313.91) -44.74 (-27.8) -8.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.77 mph (35.04 km/h)
25 mph (40.23 km/h)27.21 mph (43.8 km/h)
30 mph (48.28 km/h)32.66 mph (52.56 km/h)
35 mph (56.33 km/h)38.1 mph (61.32 km/h)
40 mph (64.37 km/h)43.54 mph (70.08 km/h)
45 mph (72.42 km/h)48.99 mph (78.83 km/h)
50 mph (80.47 km/h)54.43 mph (87.59 km/h)
55 mph (88.51 km/h)59.87 mph (96.35 km/h)
60 mph (96.56 km/h)65.31 mph (105.11 km/h)
65 mph (104.61 km/h)70.76 mph (113.87 km/h)
70 mph (112.65 km/h)76.2 mph (122.63 km/h)
75 mph (120.7 km/h)81.64 mph (131.39 km/h)
80 mph (128.75 km/h)87.09 mph (140.15 km/h)
85 mph (136.79 km/h)92.53 mph (148.91 km/h)
90 mph (144.84 km/h)97.97 mph (157.67 km/h)
95 mph (152.89 km/h)103.41 mph (166.43 km/h)
100 mph (160.93 km/h)108.86 mph (175.19 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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