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 29/16r20 Tire Comparison Side By Side
  335/25-22 29/16-20 Difference
Diameter inches (mm) 28.59 (726.3) 28.95 (735.36) 0.36 (9.06) 1.2%
Width inches (mm) 13.19 (335) 15.98 (406) 2.8 (71) 21.2%
Circum. inches (mm) 89.83 (2281.74) 90.95 (2310.2) 1.12 (28.46) 1.2%
Sidewall Height inches (mm) 3.3 (83.75) 4.48 (113.68) 1.18 (29.93) 35.7%
Revolutions per mile (km) 705.31 (438.26) 696.62 (432.86) -8.69 (-5.4) -1.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.25 mph (32.59 km/h)
25 mph (40.23 km/h)25.31 mph (40.74 km/h)
30 mph (48.28 km/h)30.37 mph (48.88 km/h)
35 mph (56.33 km/h)35.44 mph (57.03 km/h)
40 mph (64.37 km/h)40.5 mph (65.18 km/h)
45 mph (72.42 km/h)45.56 mph (73.32 km/h)
50 mph (80.47 km/h)50.62 mph (81.47 km/h)
55 mph (88.51 km/h)55.69 mph (89.62 km/h)
60 mph (96.56 km/h)60.75 mph (97.77 km/h)
65 mph (104.61 km/h)65.81 mph (105.91 km/h)
70 mph (112.65 km/h)70.87 mph (114.06 km/h)
75 mph (120.7 km/h)75.94 mph (122.21 km/h)
80 mph (128.75 km/h)81 mph (130.35 km/h)
85 mph (136.79 km/h)86.06 mph (138.5 km/h)
90 mph (144.84 km/h)91.12 mph (146.65 km/h)
95 mph (152.89 km/h)96.19 mph (154.8 km/h)
100 mph (160.93 km/h)101.25 mph (162.94 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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