Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
335/25r22 vs 395/25r24 Tire Comparison Side By Side
  335/25-22 395/25-24 Difference
Diameter inches (mm) 28.59 (726.3) 31.78 (807.1) 3.18 (80.8) 11.1%
Width inches (mm) 13.19 (335) 15.55 (395) 2.36 (60) 17.9%
Circum. inches (mm) 89.83 (2281.74) 99.83 (2535.58) 9.99 (253.84) 11.1%
Sidewall Height inches (mm) 3.3 (83.75) 3.89 (98.75) 0.59 (15) 17.9%
Revolutions per mile (km) 705.31 (438.26) 634.7 (394.39) -70.61 (-43.88) -10%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.22 mph (35.77 km/h)
25 mph (40.23 km/h)27.78 mph (44.71 km/h)
30 mph (48.28 km/h)33.34 mph (53.65 km/h)
35 mph (56.33 km/h)38.89 mph (62.59 km/h)
40 mph (64.37 km/h)44.45 mph (71.54 km/h)
45 mph (72.42 km/h)50.01 mph (80.48 km/h)
50 mph (80.47 km/h)55.56 mph (89.42 km/h)
55 mph (88.51 km/h)61.12 mph (98.36 km/h)
60 mph (96.56 km/h)66.67 mph (107.3 km/h)
65 mph (104.61 km/h)72.23 mph (116.25 km/h)
70 mph (112.65 km/h)77.79 mph (125.19 km/h)
75 mph (120.7 km/h)83.34 mph (134.13 km/h)
80 mph (128.75 km/h)88.9 mph (143.07 km/h)
85 mph (136.79 km/h)94.46 mph (152.01 km/h)
90 mph (144.84 km/h)100.01 mph (160.95 km/h)
95 mph (152.89 km/h)105.57 mph (169.9 km/h)
100 mph (160.93 km/h)111.12 mph (178.84 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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