Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
175/55r16 vs 175/35r16 Tire Comparison Side By Side
  175/55-16 175/35-16 Difference
Diameter inches (mm) 23.58 (598.9) 20.82 (528.9) -2.76 (-70) -11.7%
Width inches (mm) 6.89 (175) 6.89 (175) 0 (0) 0%
Circum. inches (mm) 74.07 (1881.5) 65.42 (1661.59) -8.66 (-219.91) -11.7%
Sidewall Height inches (mm) 3.79 (96.25) 2.41 (61.25) -1.38 (-35) -36.4%
Revolutions per mile (km) 855.35 (531.49) 968.56 (601.83) 113.21 (70.34) 13.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.66 mph (28.42 km/h)
25 mph (40.23 km/h)22.08 mph (35.53 km/h)
30 mph (48.28 km/h)26.49 mph (42.64 km/h)
35 mph (56.33 km/h)30.91 mph (49.74 km/h)
40 mph (64.37 km/h)35.32 mph (56.85 km/h)
45 mph (72.42 km/h)39.74 mph (63.96 km/h)
50 mph (80.47 km/h)44.16 mph (71.06 km/h)
55 mph (88.51 km/h)48.57 mph (78.17 km/h)
60 mph (96.56 km/h)52.99 mph (85.27 km/h)
65 mph (104.61 km/h)57.4 mph (92.38 km/h)
70 mph (112.65 km/h)61.82 mph (99.49 km/h)
75 mph (120.7 km/h)66.23 mph (106.59 km/h)
80 mph (128.75 km/h)70.65 mph (113.7 km/h)
85 mph (136.79 km/h)75.07 mph (120.81 km/h)
90 mph (144.84 km/h)79.48 mph (127.91 km/h)
95 mph (152.89 km/h)83.9 mph (135.02 km/h)
100 mph (160.93 km/h)88.31 mph (142.12 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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