Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/65r22 vs 33/12.5r22 Tire Comparison Side By Side
  295/65-22 33/12.5-22 Difference
Diameter inches (mm) 37.1 (942.3) 33.02 (838.64) -4.08 (-103.66) -11%
Width inches (mm) 11.61 (295) 12.52 (318) 0.91 (23) 7.8%
Circum. inches (mm) 116.55 (2960.32) 103.73 (2634.67) -12.82 (-325.66) -11%
Sidewall Height inches (mm) 7.55 (191.75) 5.51 (139.92) -2.04 (-51.83) -27%
Revolutions per mile (km) 543.64 (337.8) 610.83 (379.55) 67.2 (41.75) 12.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.8 mph (28.65 km/h)
25 mph (40.23 km/h)22.25 mph (35.81 km/h)
30 mph (48.28 km/h)26.7 mph (42.97 km/h)
35 mph (56.33 km/h)31.15 mph (50.13 km/h)
40 mph (64.37 km/h)35.6 mph (57.29 km/h)
45 mph (72.42 km/h)40.05 mph (64.45 km/h)
50 mph (80.47 km/h)44.5 mph (71.62 km/h)
55 mph (88.51 km/h)48.95 mph (78.78 km/h)
60 mph (96.56 km/h)53.4 mph (85.94 km/h)
65 mph (104.61 km/h)57.85 mph (93.1 km/h)
70 mph (112.65 km/h)62.3 mph (100.26 km/h)
75 mph (120.7 km/h)66.75 mph (107.42 km/h)
80 mph (128.75 km/h)71.2 mph (114.58 km/h)
85 mph (136.79 km/h)75.65 mph (121.75 km/h)
90 mph (144.84 km/h)80.1 mph (128.91 km/h)
95 mph (152.89 km/h)84.55 mph (136.07 km/h)
100 mph (160.93 km/h)89 mph (143.23 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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