Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/50r17 vs 295/25r22 Tire Comparison Side By Side
  255/50-17 295/25-22 Difference
Diameter inches (mm) 27.04 (686.8) 27.81 (706.3) 0.77 (19.5) 2.8%
Width inches (mm) 10.04 (255) 11.61 (295) 1.57 (40) 15.7%
Circum. inches (mm) 84.95 (2157.65) 87.36 (2218.91) 2.41 (61.26) 2.8%
Sidewall Height inches (mm) 5.02 (127.5) 2.9 (73.75) -2.12 (-53.75) -42.2%
Revolutions per mile (km) 745.88 (463.47) 725.29 (450.67) -20.59 (-12.8) -2.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.57 mph (33.1 km/h)
25 mph (40.23 km/h)25.71 mph (41.38 km/h)
30 mph (48.28 km/h)30.85 mph (49.65 km/h)
35 mph (56.33 km/h)35.99 mph (57.93 km/h)
40 mph (64.37 km/h)41.14 mph (66.2 km/h)
45 mph (72.42 km/h)46.28 mph (74.48 km/h)
50 mph (80.47 km/h)51.42 mph (82.75 km/h)
55 mph (88.51 km/h)56.56 mph (91.03 km/h)
60 mph (96.56 km/h)61.7 mph (99.3 km/h)
65 mph (104.61 km/h)66.85 mph (107.58 km/h)
70 mph (112.65 km/h)71.99 mph (115.85 km/h)
75 mph (120.7 km/h)77.13 mph (124.13 km/h)
80 mph (128.75 km/h)82.27 mph (132.4 km/h)
85 mph (136.79 km/h)87.41 mph (140.68 km/h)
90 mph (144.84 km/h)92.56 mph (148.95 km/h)
95 mph (152.89 km/h)97.7 mph (157.23 km/h)
100 mph (160.93 km/h)102.84 mph (165.5 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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