Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
160/80r16 vs 195/60r16 Tire Comparison Side By Side
  160/80-16 195/60-16 Difference
Diameter inches (mm) 26.08 (662.4) 25.21 (640.4) -0.87 (-22) -3.3%
Width inches (mm) 6.3 (160) 7.68 (195) 1.38 (35) 21.9%
Circum. inches (mm) 81.93 (2080.99) 79.21 (2011.88) -2.72 (-69.12) -3.3%
Sidewall Height inches (mm) 5.04 (128) 4.61 (117) -0.43 (-11) -8.6%
Revolutions per mile (km) 773.35 (480.54) 799.92 (497.05) 26.57 (16.51) 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)24.17 mph (38.9 km/h)
30 mph (48.28 km/h)29 mph (46.68 km/h)
35 mph (56.33 km/h)33.84 mph (54.46 km/h)
40 mph (64.37 km/h)38.67 mph (62.24 km/h)
45 mph (72.42 km/h)43.51 mph (70.02 km/h)
50 mph (80.47 km/h)48.34 mph (77.79 km/h)
55 mph (88.51 km/h)53.17 mph (85.57 km/h)
60 mph (96.56 km/h)58.01 mph (93.35 km/h)
65 mph (104.61 km/h)62.84 mph (101.13 km/h)
70 mph (112.65 km/h)67.68 mph (108.91 km/h)
75 mph (120.7 km/h)72.51 mph (116.69 km/h)
80 mph (128.75 km/h)77.34 mph (124.47 km/h)
85 mph (136.79 km/h)82.18 mph (132.25 km/h)
90 mph (144.84 km/h)87.01 mph (140.03 km/h)
95 mph (152.89 km/h)91.84 mph (147.81 km/h)
100 mph (160.93 km/h)96.68 mph (155.59 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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