Mike "Wuzzy121". Rest in peace, brother

Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/60r16 vs 215/60r16 Tire Comparison Side By Side
  205/60-16 215/60-16 Difference
Diameter inches (mm) 25.69 (652.4) 26.16 (664.4) 0.47 (12) 1.8%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 80.69 (2049.58) 82.18 (2087.27) 1.48 (37.7) 1.8%
Sidewall Height inches (mm) 4.84 (123) 5.08 (129) 0.24 (6) 4.9%
Revolutions per mile (km) 785.21 (487.91) 771.03 (479.09) -14.18 (-8.81) -1.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.37 mph (32.78 km/h)
25 mph (40.23 km/h)25.46 mph (40.97 km/h)
30 mph (48.28 km/h)30.55 mph (49.17 km/h)
35 mph (56.33 km/h)35.64 mph (57.36 km/h)
40 mph (64.37 km/h)40.74 mph (65.56 km/h)
45 mph (72.42 km/h)45.83 mph (73.75 km/h)
50 mph (80.47 km/h)50.92 mph (81.95 km/h)
55 mph (88.51 km/h)56.01 mph (90.14 km/h)
60 mph (96.56 km/h)61.1 mph (98.34 km/h)
65 mph (104.61 km/h)66.2 mph (106.53 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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