Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/45r19 vs 285/35r19 Tire Comparison Side By Side
  295/45-19 285/35-19 Difference
Diameter inches (mm) 29.45 (748.1) 26.85 (682.1) -2.6 (-66) -8.8%
Width inches (mm) 11.61 (295) 11.22 (285) -0.39 (-10) -3.4%
Circum. inches (mm) 92.53 (2350.23) 84.37 (2142.88) -8.16 (-207.35) -8.8%
Sidewall Height inches (mm) 5.23 (132.75) 3.93 (99.75) -1.3 (-33) -24.9%
Revolutions per mile (km) 684.76 (425.49) 751.02 (466.66) 66.26 (41.17) 9.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.24 mph (29.35 km/h)
25 mph (40.23 km/h)22.79 mph (36.68 km/h)
30 mph (48.28 km/h)27.35 mph (44.02 km/h)
35 mph (56.33 km/h)31.91 mph (51.36 km/h)
40 mph (64.37 km/h)36.47 mph (58.69 km/h)
45 mph (72.42 km/h)41.03 mph (66.03 km/h)
50 mph (80.47 km/h)45.59 mph (73.37 km/h)
55 mph (88.51 km/h)50.15 mph (80.71 km/h)
60 mph (96.56 km/h)54.71 mph (88.04 km/h)
65 mph (104.61 km/h)59.27 mph (95.38 km/h)
70 mph (112.65 km/h)63.82 mph (102.72 km/h)
75 mph (120.7 km/h)68.38 mph (110.05 km/h)
80 mph (128.75 km/h)72.94 mph (117.39 km/h)
85 mph (136.79 km/h)77.5 mph (124.73 km/h)
90 mph (144.84 km/h)82.06 mph (132.06 km/h)
95 mph (152.89 km/h)86.62 mph (139.4 km/h)
100 mph (160.93 km/h)91.18 mph (146.74 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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