Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/55r16 vs 215/60r16 Tire Comparison Side By Side
  195/55-16 215/60-16 Difference
Diameter inches (mm) 24.44 (620.9) 26.16 (664.4) 1.71 (43.5) 7%
Width inches (mm) 7.68 (195) 8.46 (215) 0.79 (20) 10.3%
Circum. inches (mm) 76.8 (1950.61) 82.18 (2087.27) 5.38 (136.66) 7%
Sidewall Height inches (mm) 4.22 (107.25) 5.08 (129) 0.86 (21.75) 20.3%
Revolutions per mile (km) 825.04 (512.66) 771.03 (479.09) -54.02 (-33.57) -6.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.4 mph (34.44 km/h)
25 mph (40.23 km/h)26.75 mph (43.05 km/h)
30 mph (48.28 km/h)32.1 mph (51.66 km/h)
35 mph (56.33 km/h)37.45 mph (60.27 km/h)
40 mph (64.37 km/h)42.8 mph (68.88 km/h)
45 mph (72.42 km/h)48.15 mph (77.49 km/h)
50 mph (80.47 km/h)53.5 mph (86.1 km/h)
55 mph (88.51 km/h)58.85 mph (94.72 km/h)
60 mph (96.56 km/h)64.2 mph (103.33 km/h)
65 mph (104.61 km/h)69.55 mph (111.94 km/h)
70 mph (112.65 km/h)74.9 mph (120.55 km/h)
75 mph (120.7 km/h)80.25 mph (129.16 km/h)
80 mph (128.75 km/h)85.6 mph (137.77 km/h)
85 mph (136.79 km/h)90.96 mph (146.38 km/h)
90 mph (144.84 km/h)96.31 mph (154.99 km/h)
95 mph (152.89 km/h)101.66 mph (163.6 km/h)
100 mph (160.93 km/h)107.01 mph (172.21 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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