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 195/55r16 Tire Comparison Side By Side
  160/80-16 195/55-16 Difference
Diameter inches (mm) 26.08 (662.4) 24.44 (620.9) -1.63 (-41.5) -6.3%
Width inches (mm) 6.3 (160) 7.68 (195) 1.38 (35) 21.9%
Circum. inches (mm) 81.93 (2080.99) 76.8 (1950.61) -5.13 (-130.38) -6.3%
Sidewall Height inches (mm) 5.04 (128) 4.22 (107.25) -0.82 (-20.75) -16.2%
Revolutions per mile (km) 773.35 (480.54) 825.04 (512.66) 51.69 (32.12) 6.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.75 mph (30.17 km/h)
25 mph (40.23 km/h)23.43 mph (37.71 km/h)
30 mph (48.28 km/h)28.12 mph (45.26 km/h)
35 mph (56.33 km/h)32.81 mph (52.8 km/h)
40 mph (64.37 km/h)37.49 mph (60.34 km/h)
45 mph (72.42 km/h)42.18 mph (67.88 km/h)
50 mph (80.47 km/h)46.87 mph (75.43 km/h)
55 mph (88.51 km/h)51.55 mph (82.97 km/h)
60 mph (96.56 km/h)56.24 mph (90.51 km/h)
65 mph (104.61 km/h)60.93 mph (98.05 km/h)
70 mph (112.65 km/h)65.61 mph (105.6 km/h)
75 mph (120.7 km/h)70.3 mph (113.14 km/h)
80 mph (128.75 km/h)74.99 mph (120.68 km/h)
85 mph (136.79 km/h)79.67 mph (128.22 km/h)
90 mph (144.84 km/h)84.36 mph (135.77 km/h)
95 mph (152.89 km/h)89.05 mph (143.31 km/h)
100 mph (160.93 km/h)93.73 mph (150.85 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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