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 285/45r24 Tire Comparison Side By Side
  295/40-24 285/45-24 Difference
Diameter inches (mm) 33.29 (845.6) 34.1 (866.1) 0.81 (20.5) 2.4%
Width inches (mm) 11.61 (295) 11.22 (285) -0.39 (-10) -3.4%
Circum. inches (mm) 104.59 (2656.53) 107.12 (2720.93) 2.54 (64.4) 2.4%
Sidewall Height inches (mm) 4.65 (118) 5.05 (128.25) 0.4 (10.25) 8.7%
Revolutions per mile (km) 605.81 (376.43) 591.47 (367.52) -14.34 (-8.91) -2.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.48 mph (32.97 km/h)
25 mph (40.23 km/h)25.61 mph (41.21 km/h)
30 mph (48.28 km/h)30.73 mph (49.45 km/h)
35 mph (56.33 km/h)35.85 mph (57.69 km/h)
40 mph (64.37 km/h)40.97 mph (65.93 km/h)
45 mph (72.42 km/h)46.09 mph (74.18 km/h)
50 mph (80.47 km/h)51.21 mph (82.42 km/h)
55 mph (88.51 km/h)56.33 mph (90.66 km/h)
60 mph (96.56 km/h)61.45 mph (98.9 km/h)
65 mph (104.61 km/h)66.58 mph (107.14 km/h)
70 mph (112.65 km/h)71.7 mph (115.39 km/h)
75 mph (120.7 km/h)76.82 mph (123.63 km/h)
80 mph (128.75 km/h)81.94 mph (131.87 km/h)
85 mph (136.79 km/h)87.06 mph (140.11 km/h)
90 mph (144.84 km/h)92.18 mph (148.35 km/h)
95 mph (152.89 km/h)97.3 mph (156.59 km/h)
100 mph (160.93 km/h)102.42 mph (164.84 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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