Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
315/25r22 vs 315/60r22 Tire Comparison Side By Side
  315/25-22 315/60-22 Difference
Diameter inches (mm) 28.2 (716.3) 36.88 (936.8) 8.68 (220.5) 30.8%
Width inches (mm) 12.4 (315) 12.4 (315) 0 (0) 0%
Circum. inches (mm) 88.6 (2250.32) 115.87 (2943.04) 27.27 (692.72) 30.8%
Sidewall Height inches (mm) 3.1 (78.75) 7.44 (189) 4.34 (110.25) 140%
Revolutions per mile (km) 715.16 (444.38) 546.83 (339.78) -168.33 (-104.6) -23.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)26.16 mph (42.1 km/h)
25 mph (40.23 km/h)32.7 mph (52.62 km/h)
30 mph (48.28 km/h)39.23 mph (63.14 km/h)
35 mph (56.33 km/h)45.77 mph (73.67 km/h)
40 mph (64.37 km/h)52.31 mph (84.19 km/h)
45 mph (72.42 km/h)58.85 mph (94.71 km/h)
50 mph (80.47 km/h)65.39 mph (105.24 km/h)
55 mph (88.51 km/h)71.93 mph (115.76 km/h)
60 mph (96.56 km/h)78.47 mph (126.29 km/h)
65 mph (104.61 km/h)85.01 mph (136.81 km/h)
70 mph (112.65 km/h)91.55 mph (147.33 km/h)
75 mph (120.7 km/h)98.09 mph (157.86 km/h)
80 mph (128.75 km/h)104.63 mph (168.38 km/h)
85 mph (136.79 km/h)111.17 mph (178.9 km/h)
90 mph (144.84 km/h)117.7 mph (189.43 km/h)
95 mph (152.89 km/h)124.24 mph (199.95 km/h)
100 mph (160.93 km/h)130.78 mph (210.48 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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