Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/70r22.5 vs 295/75r22.5 Tire Comparison Side By Side
  255/70-22.5 295/75-22.5 Difference
Diameter inches (mm) 36.56 (928.5) 39.92 (1014) 3.37 (85.5) 9.2%
Width inches (mm) 10.04 (255) 11.61 (295) 1.57 (40) 15.7%
Circum. inches (mm) 114.84 (2916.97) 125.42 (3185.57) 10.58 (268.61) 9.2%
Sidewall Height inches (mm) 7.03 (178.5) 8.71 (221.25) 1.68 (42.75) 23.9%
Revolutions per mile (km) 551.72 (342.82) 505.2 (313.91) -46.52 (-28.91) -8.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.84 mph (35.15 km/h)
25 mph (40.23 km/h)27.3 mph (43.94 km/h)
30 mph (48.28 km/h)32.76 mph (52.73 km/h)
35 mph (56.33 km/h)38.22 mph (61.51 km/h)
40 mph (64.37 km/h)43.68 mph (70.3 km/h)
45 mph (72.42 km/h)49.14 mph (79.09 km/h)
50 mph (80.47 km/h)54.6 mph (87.88 km/h)
55 mph (88.51 km/h)60.06 mph (96.66 km/h)
60 mph (96.56 km/h)65.53 mph (105.45 km/h)
65 mph (104.61 km/h)70.99 mph (114.24 km/h)
70 mph (112.65 km/h)76.45 mph (123.03 km/h)
75 mph (120.7 km/h)81.91 mph (131.82 km/h)
80 mph (128.75 km/h)87.37 mph (140.6 km/h)
85 mph (136.79 km/h)92.83 mph (149.39 km/h)
90 mph (144.84 km/h)98.29 mph (158.18 km/h)
95 mph (152.89 km/h)103.75 mph (166.97 km/h)
100 mph (160.93 km/h)109.21 mph (175.75 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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