Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/65r15 vs 205/60r16 Tire Comparison Side By Side
  205/65-15 205/60-16 Difference
Diameter inches (mm) 25.49 (647.5) 25.69 (652.4) 0.19 (4.9) 0.8%
Width inches (mm) 8.07 (205) 8.07 (205) 0 (0) 0%
Circum. inches (mm) 80.09 (2034.18) 80.69 (2049.58) 0.61 (15.39) 0.8%
Sidewall Height inches (mm) 5.25 (133.25) 4.84 (123) -0.4 (-10.25) -7.7%
Revolutions per mile (km) 791.15 (491.6) 785.21 (487.91) -5.94 (-3.69) -0.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.15 mph (32.43 km/h)
25 mph (40.23 km/h)25.19 mph (40.54 km/h)
30 mph (48.28 km/h)30.23 mph (48.65 km/h)
35 mph (56.33 km/h)35.26 mph (56.75 km/h)
40 mph (64.37 km/h)40.3 mph (64.86 km/h)
45 mph (72.42 km/h)45.34 mph (72.97 km/h)
50 mph (80.47 km/h)50.38 mph (81.08 km/h)
55 mph (88.51 km/h)55.42 mph (89.18 km/h)
60 mph (96.56 km/h)60.45 mph (97.29 km/h)
65 mph (104.61 km/h)65.49 mph (105.4 km/h)
70 mph (112.65 km/h)70.53 mph (113.51 km/h)
75 mph (120.7 km/h)75.57 mph (121.61 km/h)
80 mph (128.75 km/h)80.61 mph (129.72 km/h)
85 mph (136.79 km/h)85.64 mph (137.83 km/h)
90 mph (144.84 km/h)90.68 mph (145.94 km/h)
95 mph (152.89 km/h)95.72 mph (154.04 km/h)
100 mph (160.93 km/h)100.76 mph (162.15 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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