Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/55r15 vs 195/60r16 Tire Comparison Side By Side
  195/55-15 195/60-16 Difference
Diameter inches (mm) 23.44 (595.5) 25.21 (640.4) 1.77 (44.9) 7.5%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 73.65 (1870.82) 79.21 (2011.88) 5.55 (141.06) 7.5%
Sidewall Height inches (mm) 4.22 (107.25) 4.61 (117) 0.38 (9.75) 9.1%
Revolutions per mile (km) 860.24 (534.52) 799.92 (497.05) -60.31 (-37.48) -7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.51 mph (34.61 km/h)
25 mph (40.23 km/h)26.88 mph (43.27 km/h)
30 mph (48.28 km/h)32.26 mph (51.92 km/h)
35 mph (56.33 km/h)37.64 mph (60.57 km/h)
40 mph (64.37 km/h)43.02 mph (69.23 km/h)
45 mph (72.42 km/h)48.39 mph (77.88 km/h)
50 mph (80.47 km/h)53.77 mph (86.53 km/h)
55 mph (88.51 km/h)59.15 mph (95.19 km/h)
60 mph (96.56 km/h)64.52 mph (103.84 km/h)
65 mph (104.61 km/h)69.9 mph (112.49 km/h)
70 mph (112.65 km/h)75.28 mph (121.15 km/h)
75 mph (120.7 km/h)80.65 mph (129.8 km/h)
80 mph (128.75 km/h)86.03 mph (138.46 km/h)
85 mph (136.79 km/h)91.41 mph (147.11 km/h)
90 mph (144.84 km/h)96.79 mph (155.76 km/h)
95 mph (152.89 km/h)102.16 mph (164.42 km/h)
100 mph (160.93 km/h)107.54 mph (173.07 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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