Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/45r19 vs 275/35r19 Tire Comparison Side By Side
  275/45-19 275/35-19 Difference
Diameter inches (mm) 28.74 (730.1) 26.58 (675.1) -2.17 (-55) -7.5%
Width inches (mm) 10.83 (275) 10.83 (275) 0 (0) 0%
Circum. inches (mm) 90.3 (2293.68) 83.5 (2120.89) -6.8 (-172.79) -7.5%
Sidewall Height inches (mm) 4.87 (123.75) 3.79 (96.25) -1.08 (-27.5) -22.2%
Revolutions per mile (km) 701.64 (435.98) 758.81 (471.5) 57.16 (35.52) 8.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.49 mph (29.76 km/h)
25 mph (40.23 km/h)23.12 mph (37.2 km/h)
30 mph (48.28 km/h)27.74 mph (44.64 km/h)
35 mph (56.33 km/h)32.36 mph (52.08 km/h)
40 mph (64.37 km/h)36.99 mph (59.52 km/h)
45 mph (72.42 km/h)41.61 mph (66.97 km/h)
50 mph (80.47 km/h)46.23 mph (74.41 km/h)
55 mph (88.51 km/h)50.86 mph (81.85 km/h)
60 mph (96.56 km/h)55.48 mph (89.29 km/h)
65 mph (104.61 km/h)60.1 mph (96.73 km/h)
70 mph (112.65 km/h)64.73 mph (104.17 km/h)
75 mph (120.7 km/h)69.35 mph (111.61 km/h)
80 mph (128.75 km/h)73.97 mph (119.05 km/h)
85 mph (136.79 km/h)78.6 mph (126.49 km/h)
90 mph (144.84 km/h)83.22 mph (133.93 km/h)
95 mph (152.89 km/h)87.84 mph (141.37 km/h)
100 mph (160.93 km/h)92.47 mph (148.81 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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