Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/40r22 vs 295/30r22 Tire Comparison Side By Side
  275/40-22 295/30-22 Difference
Diameter inches (mm) 30.66 (778.8) 28.97 (735.8) -1.69 (-43) -5.5%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 96.33 (2446.67) 91.01 (2311.58) -5.32 (-135.09) -5.5%
Sidewall Height inches (mm) 4.33 (110) 3.48 (88.5) -0.85 (-21.5) -19.5%
Revolutions per mile (km) 657.77 (408.72) 696.21 (432.6) 38.44 (23.89) 5.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.9 mph (30.41 km/h)
25 mph (40.23 km/h)23.62 mph (38.01 km/h)
30 mph (48.28 km/h)28.34 mph (45.61 km/h)
35 mph (56.33 km/h)33.07 mph (53.22 km/h)
40 mph (64.37 km/h)37.79 mph (60.82 km/h)
45 mph (72.42 km/h)42.52 mph (68.42 km/h)
50 mph (80.47 km/h)47.24 mph (76.02 km/h)
55 mph (88.51 km/h)51.96 mph (83.63 km/h)
60 mph (96.56 km/h)56.69 mph (91.23 km/h)
65 mph (104.61 km/h)61.41 mph (98.83 km/h)
70 mph (112.65 km/h)66.14 mph (106.43 km/h)
75 mph (120.7 km/h)70.86 mph (114.04 km/h)
80 mph (128.75 km/h)75.58 mph (121.64 km/h)
85 mph (136.79 km/h)80.31 mph (129.24 km/h)
90 mph (144.84 km/h)85.03 mph (136.84 km/h)
95 mph (152.89 km/h)89.75 mph (144.45 km/h)
100 mph (160.93 km/h)94.48 mph (152.05 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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