Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/55r16 vs 215/60r16 Tire Comparison Side By Side
  205/55-16 215/60-16 Difference
Diameter inches (mm) 24.88 (631.9) 26.16 (664.4) 1.28 (32.5) 5.1%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 78.16 (1985.17) 82.18 (2087.27) 4.02 (102.1) 5.1%
Sidewall Height inches (mm) 4.44 (112.75) 5.08 (129) 0.64 (16.25) 14.4%
Revolutions per mile (km) 810.68 (503.73) 771.03 (479.09) -39.66 (-24.64) -4.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.03 mph (33.84 km/h)
25 mph (40.23 km/h)26.29 mph (42.3 km/h)
30 mph (48.28 km/h)31.54 mph (50.76 km/h)
35 mph (56.33 km/h)36.8 mph (59.22 km/h)
40 mph (64.37 km/h)42.06 mph (67.68 km/h)
45 mph (72.42 km/h)47.31 mph (76.15 km/h)
50 mph (80.47 km/h)52.57 mph (84.61 km/h)
55 mph (88.51 km/h)57.83 mph (93.07 km/h)
60 mph (96.56 km/h)63.09 mph (101.53 km/h)
65 mph (104.61 km/h)68.34 mph (109.99 km/h)
70 mph (112.65 km/h)73.6 mph (118.45 km/h)
75 mph (120.7 km/h)78.86 mph (126.91 km/h)
80 mph (128.75 km/h)84.11 mph (135.37 km/h)
85 mph (136.79 km/h)89.37 mph (143.83 km/h)
90 mph (144.84 km/h)94.63 mph (152.29 km/h)
95 mph (152.89 km/h)99.89 mph (160.75 km/h)
100 mph (160.93 km/h)105.14 mph (169.21 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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