Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/25r20 vs 295/20r22 Tire Comparison Side By Side
  295/25-20 295/20-22 Difference
Diameter inches (mm) 25.81 (655.5) 26.65 (676.8) 0.84 (21.3) 3.2%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 81.08 (2059.31) 83.71 (2126.23) 2.63 (66.92) 3.2%
Sidewall Height inches (mm) 2.9 (73.75) 2.32 (59) -0.58 (-14.75) -20%
Revolutions per mile (km) 781.5 (485.6) 756.9 (470.32) -24.59 (-15.28) -3.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.65 mph (33.23 km/h)
25 mph (40.23 km/h)25.81 mph (41.54 km/h)
30 mph (48.28 km/h)30.97 mph (49.85 km/h)
35 mph (56.33 km/h)36.14 mph (58.16 km/h)
40 mph (64.37 km/h)41.3 mph (66.47 km/h)
45 mph (72.42 km/h)46.46 mph (74.77 km/h)
50 mph (80.47 km/h)51.62 mph (83.08 km/h)
55 mph (88.51 km/h)56.79 mph (91.39 km/h)
60 mph (96.56 km/h)61.95 mph (99.7 km/h)
65 mph (104.61 km/h)67.11 mph (108.01 km/h)
70 mph (112.65 km/h)72.27 mph (116.31 km/h)
75 mph (120.7 km/h)77.44 mph (124.62 km/h)
80 mph (128.75 km/h)82.6 mph (132.93 km/h)
85 mph (136.79 km/h)87.76 mph (141.24 km/h)
90 mph (144.84 km/h)92.92 mph (149.55 km/h)
95 mph (152.89 km/h)98.09 mph (157.86 km/h)
100 mph (160.93 km/h)103.25 mph (166.16 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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