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 195/55r16 Tire Comparison Side By Side
  220/60-16 195/55-16 Difference
Diameter inches (mm) 26.39 (670.4) 24.44 (620.9) -1.95 (-49.5) -7.4%
Width inches (mm) 8.66 (220) 7.68 (195) -0.98 (-25) -11.4%
Circum. inches (mm) 82.92 (2106.12) 76.8 (1950.61) -6.12 (-155.51) -7.4%
Sidewall Height inches (mm) 5.2 (132) 4.22 (107.25) -0.97 (-24.75) -18.8%
Revolutions per mile (km) 764.13 (474.81) 825.04 (512.66) 60.92 (37.85) 8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.52 mph (29.81 km/h)
25 mph (40.23 km/h)23.15 mph (37.26 km/h)
30 mph (48.28 km/h)27.78 mph (44.72 km/h)
35 mph (56.33 km/h)32.42 mph (52.17 km/h)
40 mph (64.37 km/h)37.05 mph (59.62 km/h)
45 mph (72.42 km/h)41.68 mph (67.07 km/h)
50 mph (80.47 km/h)46.31 mph (74.53 km/h)
55 mph (88.51 km/h)50.94 mph (81.98 km/h)
60 mph (96.56 km/h)55.57 mph (89.43 km/h)
65 mph (104.61 km/h)60.2 mph (96.88 km/h)
70 mph (112.65 km/h)64.83 mph (104.34 km/h)
75 mph (120.7 km/h)69.46 mph (111.79 km/h)
80 mph (128.75 km/h)74.09 mph (119.24 km/h)
85 mph (136.79 km/h)78.72 mph (126.69 km/h)
90 mph (144.84 km/h)83.35 mph (134.15 km/h)
95 mph (152.89 km/h)87.99 mph (141.6 km/h)
100 mph (160.93 km/h)92.62 mph (149.05 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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