Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/40r24 vs 295/45r24 Tire Comparison Side By Side
  285/40-24 295/45-24 Difference
Diameter inches (mm) 32.98 (837.6) 34.45 (875.1) 1.48 (37.5) 4.5%
Width inches (mm) 11.22 (285) 11.61 (295) 0.39 (10) 3.5%
Circum. inches (mm) 103.6 (2631.4) 108.24 (2749.21) 4.64 (117.81) 4.5%
Sidewall Height inches (mm) 4.49 (114) 5.23 (132.75) 0.74 (18.75) 16.4%
Revolutions per mile (km) 611.59 (380.03) 585.38 (363.74) -26.21 (-16.28) -4.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.9 mph (33.63 km/h)
25 mph (40.23 km/h)26.12 mph (42.03 km/h)
30 mph (48.28 km/h)31.34 mph (50.44 km/h)
35 mph (56.33 km/h)36.57 mph (58.85 km/h)
40 mph (64.37 km/h)41.79 mph (67.26 km/h)
45 mph (72.42 km/h)47.01 mph (75.66 km/h)
50 mph (80.47 km/h)52.24 mph (84.07 km/h)
55 mph (88.51 km/h)57.46 mph (92.48 km/h)
60 mph (96.56 km/h)62.69 mph (100.88 km/h)
65 mph (104.61 km/h)67.91 mph (109.29 km/h)
70 mph (112.65 km/h)73.13 mph (117.7 km/h)
75 mph (120.7 km/h)78.36 mph (126.1 km/h)
80 mph (128.75 km/h)83.58 mph (134.51 km/h)
85 mph (136.79 km/h)88.81 mph (142.92 km/h)
90 mph (144.84 km/h)94.03 mph (151.33 km/h)
95 mph (152.89 km/h)99.25 mph (159.73 km/h)
100 mph (160.93 km/h)104.48 mph (168.14 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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