Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
220/60r16 vs 205/60r16 Tire Comparison Side By Side
  220/60-16 205/60-16 Difference
Diameter inches (mm) 26.39 (670.4) 25.69 (652.4) -0.71 (-18) -2.7%
Width inches (mm) 8.66 (220) 8.07 (205) -0.59 (-15) -6.8%
Circum. inches (mm) 82.92 (2106.12) 80.69 (2049.58) -2.23 (-56.55) -2.7%
Sidewall Height inches (mm) 5.2 (132) 4.84 (123) -0.35 (-9) -6.8%
Revolutions per mile (km) 764.13 (474.81) 785.21 (487.91) 21.08 (13.1) 2.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.46 mph (31.32 km/h)
25 mph (40.23 km/h)24.33 mph (39.15 km/h)
30 mph (48.28 km/h)29.19 mph (46.98 km/h)
35 mph (56.33 km/h)34.06 mph (54.81 km/h)
40 mph (64.37 km/h)38.93 mph (62.65 km/h)
45 mph (72.42 km/h)43.79 mph (70.48 km/h)
50 mph (80.47 km/h)48.66 mph (78.31 km/h)
55 mph (88.51 km/h)53.52 mph (86.14 km/h)
60 mph (96.56 km/h)58.39 mph (93.97 km/h)
65 mph (104.61 km/h)63.25 mph (101.8 km/h)
70 mph (112.65 km/h)68.12 mph (109.63 km/h)
75 mph (120.7 km/h)72.99 mph (117.46 km/h)
80 mph (128.75 km/h)77.85 mph (125.29 km/h)
85 mph (136.79 km/h)82.72 mph (133.12 km/h)
90 mph (144.84 km/h)87.58 mph (140.95 km/h)
95 mph (152.89 km/h)92.45 mph (148.78 km/h)
100 mph (160.93 km/h)97.32 mph (156.61 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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