Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
315/25r23 vs 295/25r24 Tire Comparison Side By Side
  315/25-23 295/25-24 Difference
Diameter inches (mm) 29.2 (741.7) 29.81 (757.1) 0.61 (15.4) 2.1%
Width inches (mm) 12.4 (315) 11.61 (295) -0.79 (-20) -6.3%
Circum. inches (mm) 91.74 (2330.12) 93.64 (2378.5) 1.9 (48.38) 2.1%
Sidewall Height inches (mm) 3.1 (78.75) 2.9 (73.75) -0.2 (-5) -6.3%
Revolutions per mile (km) 690.67 (429.16) 676.62 (420.43) -14.05 (-8.73) -2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.42 mph (32.86 km/h)
25 mph (40.23 km/h)25.52 mph (41.07 km/h)
30 mph (48.28 km/h)30.62 mph (49.28 km/h)
35 mph (56.33 km/h)35.73 mph (57.5 km/h)
40 mph (64.37 km/h)40.83 mph (65.71 km/h)
45 mph (72.42 km/h)45.93 mph (73.92 km/h)
50 mph (80.47 km/h)51.04 mph (82.14 km/h)
55 mph (88.51 km/h)56.14 mph (90.35 km/h)
60 mph (96.56 km/h)61.25 mph (98.57 km/h)
65 mph (104.61 km/h)66.35 mph (106.78 km/h)
70 mph (112.65 km/h)71.45 mph (114.99 km/h)
75 mph (120.7 km/h)76.56 mph (123.21 km/h)
80 mph (128.75 km/h)81.66 mph (131.42 km/h)
85 mph (136.79 km/h)86.76 mph (139.63 km/h)
90 mph (144.84 km/h)91.87 mph (147.85 km/h)
95 mph (152.89 km/h)96.97 mph (156.06 km/h)
100 mph (160.93 km/h)102.08 mph (164.28 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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