Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
315/25r23 vs 355/60r24 Tire Comparison Side By Side
  315/25-23 355/60-24 Difference
Diameter inches (mm) 29.2 (741.7) 40.77 (1035.6) 11.57 (293.9) 39.6%
Width inches (mm) 12.4 (315) 13.98 (355) 1.57 (40) 12.7%
Circum. inches (mm) 91.74 (2330.12) 128.09 (3253.43) 36.35 (923.31) 39.6%
Sidewall Height inches (mm) 3.1 (78.75) 8.39 (213) 5.29 (134.25) 170.5%
Revolutions per mile (km) 690.67 (429.16) 494.66 (307.37) -196.01 (-121.79) -28.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)27.93 mph (44.94 km/h)
25 mph (40.23 km/h)34.91 mph (56.18 km/h)
30 mph (48.28 km/h)41.89 mph (67.41 km/h)
35 mph (56.33 km/h)48.87 mph (78.65 km/h)
40 mph (64.37 km/h)55.85 mph (89.88 km/h)
45 mph (72.42 km/h)62.83 mph (101.12 km/h)
50 mph (80.47 km/h)69.81 mph (112.35 km/h)
55 mph (88.51 km/h)76.79 mph (123.59 km/h)
60 mph (96.56 km/h)83.78 mph (134.82 km/h)
65 mph (104.61 km/h)90.76 mph (146.06 km/h)
70 mph (112.65 km/h)97.74 mph (157.29 km/h)
75 mph (120.7 km/h)104.72 mph (168.53 km/h)
80 mph (128.75 km/h)111.7 mph (179.76 km/h)
85 mph (136.79 km/h)118.68 mph (191 km/h)
90 mph (144.84 km/h)125.66 mph (202.23 km/h)
95 mph (152.89 km/h)132.64 mph (213.47 km/h)
100 mph (160.93 km/h)139.63 mph (224.71 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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