Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
240/50r16 vs 275/35r16 Tire Comparison Side By Side
  240/50-16 275/35-16 Difference
Diameter inches (mm) 25.45 (646.4) 23.58 (598.9) -1.87 (-47.5) -7.3%
Width inches (mm) 9.45 (240) 10.83 (275) 1.38 (35) 14.6%
Circum. inches (mm) 79.95 (2030.73) 74.07 (1881.5) -5.88 (-149.23) -7.3%
Sidewall Height inches (mm) 4.72 (120) 3.79 (96.25) -0.94 (-23.75) -19.8%
Revolutions per mile (km) 792.5 (492.43) 855.35 (531.49) 62.85 (39.06) 7.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.53 mph (29.82 km/h)
25 mph (40.23 km/h)23.16 mph (37.28 km/h)
30 mph (48.28 km/h)27.8 mph (44.73 km/h)
35 mph (56.33 km/h)32.43 mph (52.19 km/h)
40 mph (64.37 km/h)37.06 mph (59.64 km/h)
45 mph (72.42 km/h)41.69 mph (67.1 km/h)
50 mph (80.47 km/h)46.33 mph (74.55 km/h)
55 mph (88.51 km/h)50.96 mph (82.01 km/h)
60 mph (96.56 km/h)55.59 mph (89.47 km/h)
65 mph (104.61 km/h)60.22 mph (96.92 km/h)
70 mph (112.65 km/h)64.86 mph (104.38 km/h)
75 mph (120.7 km/h)69.49 mph (111.83 km/h)
80 mph (128.75 km/h)74.12 mph (119.29 km/h)
85 mph (136.79 km/h)78.75 mph (126.74 km/h)
90 mph (144.84 km/h)83.39 mph (134.2 km/h)
95 mph (152.89 km/h)88.02 mph (141.65 km/h)
100 mph (160.93 km/h)92.65 mph (149.11 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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