Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
345/35r19 vs 335/30r19 Tire Comparison Side By Side
  345/35-19 335/30-19 Difference
Diameter inches (mm) 28.51 (724.1) 26.91 (683.6) -1.59 (-40.5) -5.6%
Width inches (mm) 13.58 (345) 13.19 (335) -0.39 (-10) -2.9%
Circum. inches (mm) 89.56 (2274.83) 84.55 (2147.59) -5.01 (-127.23) -5.6%
Sidewall Height inches (mm) 4.75 (120.75) 3.96 (100.5) -0.8 (-20.25) -16.8%
Revolutions per mile (km) 707.46 (439.59) 749.37 (465.64) 41.91 (26.04) 5.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.88 mph (30.39 km/h)
25 mph (40.23 km/h)23.6 mph (37.98 km/h)
30 mph (48.28 km/h)28.32 mph (45.58 km/h)
35 mph (56.33 km/h)33.04 mph (53.18 km/h)
40 mph (64.37 km/h)37.76 mph (60.77 km/h)
45 mph (72.42 km/h)42.48 mph (68.37 km/h)
50 mph (80.47 km/h)47.2 mph (75.97 km/h)
55 mph (88.51 km/h)51.92 mph (83.56 km/h)
60 mph (96.56 km/h)56.64 mph (91.16 km/h)
65 mph (104.61 km/h)61.36 mph (98.76 km/h)
70 mph (112.65 km/h)66.08 mph (106.35 km/h)
75 mph (120.7 km/h)70.81 mph (113.95 km/h)
80 mph (128.75 km/h)75.53 mph (121.55 km/h)
85 mph (136.79 km/h)80.25 mph (129.14 km/h)
90 mph (144.84 km/h)84.97 mph (136.74 km/h)
95 mph (152.89 km/h)89.69 mph (144.34 km/h)
100 mph (160.93 km/h)94.41 mph (151.93 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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