Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
315/35r17 vs 295/50r17 Tire Comparison Side By Side
  315/35-17 295/50-17 Difference
Diameter inches (mm) 25.68 (652.3) 28.61 (726.8) 2.93 (74.5) 11.4%
Width inches (mm) 12.4 (315) 11.61 (295) -0.79 (-20) -6.3%
Circum. inches (mm) 80.68 (2049.26) 89.89 (2283.31) 9.21 (234.05) 11.4%
Sidewall Height inches (mm) 4.34 (110.25) 5.81 (147.5) 1.47 (37.25) 33.8%
Revolutions per mile (km) 785.33 (487.98) 704.83 (437.96) -80.5 (-50.02) -10.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.28 mph (35.86 km/h)
25 mph (40.23 km/h)27.86 mph (44.83 km/h)
30 mph (48.28 km/h)33.43 mph (53.79 km/h)
35 mph (56.33 km/h)39 mph (62.76 km/h)
40 mph (64.37 km/h)44.57 mph (71.73 km/h)
45 mph (72.42 km/h)50.14 mph (80.69 km/h)
50 mph (80.47 km/h)55.71 mph (89.66 km/h)
55 mph (88.51 km/h)61.28 mph (98.62 km/h)
60 mph (96.56 km/h)66.85 mph (107.59 km/h)
65 mph (104.61 km/h)72.42 mph (116.55 km/h)
70 mph (112.65 km/h)77.99 mph (125.52 km/h)
75 mph (120.7 km/h)83.57 mph (134.49 km/h)
80 mph (128.75 km/h)89.14 mph (143.45 km/h)
85 mph (136.79 km/h)94.71 mph (152.42 km/h)
90 mph (144.84 km/h)100.28 mph (161.38 km/h)
95 mph (152.89 km/h)105.85 mph (170.35 km/h)
100 mph (160.93 km/h)111.42 mph (179.32 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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