Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/25r22 vs 315/25r22 Tire Comparison Side By Side
  295/25-22 315/25-22 Difference
Diameter inches (mm) 27.81 (706.3) 28.2 (716.3) 0.39 (10) 1.4%
Width inches (mm) 11.61 (295) 12.4 (315) 0.79 (20) 6.8%
Circum. inches (mm) 87.36 (2218.91) 88.6 (2250.32) 1.24 (31.42) 1.4%
Sidewall Height inches (mm) 2.9 (73.75) 3.1 (78.75) 0.2 (5) 6.8%
Revolutions per mile (km) 725.29 (450.67) 715.16 (444.38) -10.13 (-6.29) -1.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.28 mph (32.64 km/h)
25 mph (40.23 km/h)25.35 mph (40.8 km/h)
30 mph (48.28 km/h)30.42 mph (48.96 km/h)
35 mph (56.33 km/h)35.5 mph (57.12 km/h)
40 mph (64.37 km/h)40.57 mph (65.29 km/h)
45 mph (72.42 km/h)45.64 mph (73.45 km/h)
50 mph (80.47 km/h)50.71 mph (81.61 km/h)
55 mph (88.51 km/h)55.78 mph (89.77 km/h)
60 mph (96.56 km/h)60.85 mph (97.93 km/h)
65 mph (104.61 km/h)65.92 mph (106.09 km/h)
70 mph (112.65 km/h)70.99 mph (114.25 km/h)
75 mph (120.7 km/h)76.06 mph (122.41 km/h)
80 mph (128.75 km/h)81.13 mph (130.57 km/h)
85 mph (136.79 km/h)86.2 mph (138.73 km/h)
90 mph (144.84 km/h)91.27 mph (146.89 km/h)
95 mph (152.89 km/h)96.35 mph (155.05 km/h)
100 mph (160.93 km/h)101.42 mph (163.21 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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