Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/40r22 vs 275/40r22 Tire Comparison Side By Side
  265/40-22 275/40-22 Difference
Diameter inches (mm) 30.35 (770.8) 30.66 (778.8) 0.31 (8) 1%
Width inches (mm) 10.43 (265) 10.83 (275) 0.39 (10) 3.8%
Circum. inches (mm) 95.34 (2421.54) 96.33 (2446.67) 0.99 (25.13) 1%
Sidewall Height inches (mm) 4.17 (106) 4.33 (110) 0.16 (4) 3.8%
Revolutions per mile (km) 664.6 (412.96) 657.77 (408.72) -6.83 (-4.24) -1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.21 mph (32.52 km/h)
25 mph (40.23 km/h)25.26 mph (40.65 km/h)
30 mph (48.28 km/h)30.31 mph (48.78 km/h)
35 mph (56.33 km/h)35.36 mph (56.91 km/h)
40 mph (64.37 km/h)40.42 mph (65.04 km/h)
45 mph (72.42 km/h)45.47 mph (73.17 km/h)
50 mph (80.47 km/h)50.52 mph (81.3 km/h)
55 mph (88.51 km/h)55.57 mph (89.43 km/h)
60 mph (96.56 km/h)60.62 mph (97.56 km/h)
65 mph (104.61 km/h)65.67 mph (105.69 km/h)
70 mph (112.65 km/h)70.73 mph (113.82 km/h)
75 mph (120.7 km/h)75.78 mph (121.95 km/h)
80 mph (128.75 km/h)80.83 mph (130.08 km/h)
85 mph (136.79 km/h)85.88 mph (138.21 km/h)
90 mph (144.84 km/h)90.93 mph (146.34 km/h)
95 mph (152.89 km/h)95.99 mph (154.47 km/h)
100 mph (160.93 km/h)101.04 mph (162.61 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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