Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/60r15 vs 205/50r16 Tire Comparison Side By Side
  195/60-15 205/50-16 Difference
Diameter inches (mm) 24.21 (615) 24.07 (611.4) -0.14 (-3.6) -0.6%
Width inches (mm) 7.68 (195) 8.07 (205) 0.39 (10) 5.1%
Circum. inches (mm) 76.07 (1932.08) 75.62 (1920.77) -0.45 (-11.31) -0.6%
Sidewall Height inches (mm) 4.61 (117) 4.04 (102.5) -0.57 (-14.5) -12.4%
Revolutions per mile (km) 832.96 (517.58) 837.86 (520.62) 4.9 (3.05) 0.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.88 mph (32 km/h)
25 mph (40.23 km/h)24.85 mph (40 km/h)
30 mph (48.28 km/h)29.82 mph (48 km/h)
35 mph (56.33 km/h)34.8 mph (56 km/h)
40 mph (64.37 km/h)39.77 mph (64 km/h)
45 mph (72.42 km/h)44.74 mph (72 km/h)
50 mph (80.47 km/h)49.71 mph (80 km/h)
55 mph (88.51 km/h)54.68 mph (88 km/h)
60 mph (96.56 km/h)59.65 mph (96 km/h)
65 mph (104.61 km/h)64.62 mph (104 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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