Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/40r24 vs 305/45r24 Tire Comparison Side By Side
  295/40-24 305/45-24 Difference
Diameter inches (mm) 33.29 (845.6) 34.81 (884.1) 1.52 (38.5) 4.6%
Width inches (mm) 11.61 (295) 12.01 (305) 0.39 (10) 3.4%
Circum. inches (mm) 104.59 (2656.53) 109.35 (2777.48) 4.76 (120.95) 4.6%
Sidewall Height inches (mm) 4.65 (118) 5.4 (137.25) 0.76 (19.25) 16.3%
Revolutions per mile (km) 605.81 (376.43) 579.43 (360.04) -26.38 (-16.39) -4.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.91 mph (33.65 km/h)
25 mph (40.23 km/h)26.14 mph (42.07 km/h)
30 mph (48.28 km/h)31.37 mph (50.48 km/h)
35 mph (56.33 km/h)36.59 mph (58.89 km/h)
40 mph (64.37 km/h)41.82 mph (67.3 km/h)
45 mph (72.42 km/h)47.05 mph (75.72 km/h)
50 mph (80.47 km/h)52.28 mph (84.13 km/h)
55 mph (88.51 km/h)57.5 mph (92.54 km/h)
60 mph (96.56 km/h)62.73 mph (100.96 km/h)
65 mph (104.61 km/h)67.96 mph (109.37 km/h)
70 mph (112.65 km/h)73.19 mph (117.78 km/h)
75 mph (120.7 km/h)78.41 mph (126.2 km/h)
80 mph (128.75 km/h)83.64 mph (134.61 km/h)
85 mph (136.79 km/h)88.87 mph (143.02 km/h)
90 mph (144.84 km/h)94.1 mph (151.44 km/h)
95 mph (152.89 km/h)99.33 mph (159.85 km/h)
100 mph (160.93 km/h)104.55 mph (168.26 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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