Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
240/55r16 vs 225/95r16 Tire Comparison Side By Side
  240/55-16 225/95-16 Difference
Diameter inches (mm) 26.39 (670.4) 32.83 (833.9) 6.44 (163.5) 24.4%
Width inches (mm) 9.45 (240) 8.86 (225) -0.59 (-15) -6.3%
Circum. inches (mm) 82.92 (2106.12) 103.14 (2619.77) 20.22 (513.65) 24.4%
Sidewall Height inches (mm) 5.2 (132) 8.42 (213.75) 3.22 (81.75) 61.9%
Revolutions per mile (km) 764.13 (474.81) 614.31 (381.71) -149.82 (-93.09) -19.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)24.88 mph (40.04 km/h)
25 mph (40.23 km/h)31.1 mph (50.05 km/h)
30 mph (48.28 km/h)37.32 mph (60.06 km/h)
35 mph (56.33 km/h)43.54 mph (70.06 km/h)
40 mph (64.37 km/h)49.76 mph (80.07 km/h)
45 mph (72.42 km/h)55.97 mph (90.08 km/h)
50 mph (80.47 km/h)62.19 mph (100.09 km/h)
55 mph (88.51 km/h)68.41 mph (110.1 km/h)
60 mph (96.56 km/h)74.63 mph (120.11 km/h)
65 mph (104.61 km/h)80.85 mph (130.12 km/h)
70 mph (112.65 km/h)87.07 mph (140.13 km/h)
75 mph (120.7 km/h)93.29 mph (150.14 km/h)
80 mph (128.75 km/h)99.51 mph (160.15 km/h)
85 mph (136.79 km/h)105.73 mph (170.16 km/h)
90 mph (144.84 km/h)111.95 mph (180.17 km/h)
95 mph (152.89 km/h)118.17 mph (190.17 km/h)
100 mph (160.93 km/h)124.39 mph (200.18 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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