Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/50r19 vs 250/50r19 Tire Comparison Side By Side
  275/50-19 250/50-19 Difference
Diameter inches (mm) 29.83 (757.6) 28.84 (732.6) -0.98 (-25) -3.3%
Width inches (mm) 10.83 (275) 9.84 (250) -0.98 (-25) -9.1%
Circum. inches (mm) 93.7 (2380.07) 90.61 (2301.53) -3.09 (-78.54) -3.3%
Sidewall Height inches (mm) 5.41 (137.5) 4.92 (125) -0.49 (-12.5) -9.1%
Revolutions per mile (km) 676.17 (420.15) 699.25 (434.49) 23.07 (14.34) 3.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.34 mph (31.12 km/h)
25 mph (40.23 km/h)24.18 mph (38.91 km/h)
30 mph (48.28 km/h)29.01 mph (46.69 km/h)
35 mph (56.33 km/h)33.85 mph (54.47 km/h)
40 mph (64.37 km/h)38.68 mph (62.25 km/h)
45 mph (72.42 km/h)43.52 mph (70.03 km/h)
50 mph (80.47 km/h)48.35 mph (77.81 km/h)
55 mph (88.51 km/h)53.19 mph (85.59 km/h)
60 mph (96.56 km/h)58.02 mph (93.37 km/h)
65 mph (104.61 km/h)62.86 mph (101.16 km/h)
70 mph (112.65 km/h)67.69 mph (108.94 km/h)
75 mph (120.7 km/h)72.53 mph (116.72 km/h)
80 mph (128.75 km/h)77.36 mph (124.5 km/h)
85 mph (136.79 km/h)82.2 mph (132.28 km/h)
90 mph (144.84 km/h)87.03 mph (140.06 km/h)
95 mph (152.89 km/h)91.87 mph (147.84 km/h)
100 mph (160.93 km/h)96.7 mph (155.62 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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