Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/35r22 vs 295/45r20 Tire Comparison Side By Side
  295/35-22 295/45-20 Difference
Diameter inches (mm) 30.13 (765.3) 30.45 (773.5) 0.32 (8.2) 1.1%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 94.66 (2404.26) 95.67 (2430.02) 1.01 (25.76) 1.1%
Sidewall Height inches (mm) 4.06 (103.25) 5.23 (132.75) 1.16 (29.5) 28.6%
Revolutions per mile (km) 669.37 (415.93) 662.28 (411.52) -7.1 (-4.41) -1.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.21 mph (32.53 km/h)
25 mph (40.23 km/h)25.27 mph (40.66 km/h)
30 mph (48.28 km/h)30.32 mph (48.8 km/h)
35 mph (56.33 km/h)35.38 mph (56.93 km/h)
40 mph (64.37 km/h)40.43 mph (65.06 km/h)
45 mph (72.42 km/h)45.48 mph (73.2 km/h)
50 mph (80.47 km/h)50.54 mph (81.33 km/h)
55 mph (88.51 km/h)55.59 mph (89.46 km/h)
60 mph (96.56 km/h)60.64 mph (97.6 km/h)
65 mph (104.61 km/h)65.7 mph (105.73 km/h)
70 mph (112.65 km/h)70.75 mph (113.86 km/h)
75 mph (120.7 km/h)75.8 mph (121.99 km/h)
80 mph (128.75 km/h)80.86 mph (130.13 km/h)
85 mph (136.79 km/h)85.91 mph (138.26 km/h)
90 mph (144.84 km/h)90.96 mph (146.39 km/h)
95 mph (152.89 km/h)96.02 mph (154.53 km/h)
100 mph (160.93 km/h)101.07 mph (162.66 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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