Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/75r16 vs 205/60r16 Tire Comparison Side By Side
  205/75-16 205/60-16 Difference
Diameter inches (mm) 28.11 (713.9) 25.69 (652.4) -2.42 (-61.5) -8.6%
Width inches (mm) 8.07 (205) 8.07 (205) 0 (0) 0%
Circum. inches (mm) 88.3 (2242.78) 80.69 (2049.58) -7.61 (-193.21) -8.6%
Sidewall Height inches (mm) 6.05 (153.75) 4.84 (123) -1.21 (-30.75) -20%
Revolutions per mile (km) 717.57 (445.87) 785.21 (487.91) 67.64 (42.03) 9.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.28 mph (29.41 km/h)
25 mph (40.23 km/h)22.85 mph (36.77 km/h)
30 mph (48.28 km/h)27.42 mph (44.12 km/h)
35 mph (56.33 km/h)31.98 mph (51.47 km/h)
40 mph (64.37 km/h)36.55 mph (58.83 km/h)
45 mph (72.42 km/h)41.12 mph (66.18 km/h)
50 mph (80.47 km/h)45.69 mph (73.54 km/h)
55 mph (88.51 km/h)50.26 mph (80.89 km/h)
60 mph (96.56 km/h)54.83 mph (88.24 km/h)
65 mph (104.61 km/h)59.4 mph (95.6 km/h)
70 mph (112.65 km/h)63.97 mph (102.95 km/h)
75 mph (120.7 km/h)68.54 mph (110.3 km/h)
80 mph (128.75 km/h)73.11 mph (117.66 km/h)
85 mph (136.79 km/h)77.68 mph (125.01 km/h)
90 mph (144.84 km/h)82.25 mph (132.36 km/h)
95 mph (152.89 km/h)86.82 mph (139.72 km/h)
100 mph (160.93 km/h)91.39 mph (147.07 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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