Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
325/35r28 vs 295/25r26 Tire Comparison Side By Side
  325/35-28 295/25-26 Difference
Diameter inches (mm) 36.96 (938.7) 31.81 (807.9) -5.15 (-130.8) -13.9%
Width inches (mm) 12.8 (325) 11.61 (295) -1.18 (-30) -9.2%
Circum. inches (mm) 116.1 (2949.01) 99.92 (2538.09) -16.18 (-410.92) -13.9%
Sidewall Height inches (mm) 4.48 (113.75) 2.9 (73.75) -1.57 (-40) -35.2%
Revolutions per mile (km) 545.72 (339.1) 634.08 (394) 88.35 (54.9) 16.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.21 mph (27.7 km/h)
25 mph (40.23 km/h)21.52 mph (34.63 km/h)
30 mph (48.28 km/h)25.82 mph (41.55 km/h)
35 mph (56.33 km/h)30.12 mph (48.48 km/h)
40 mph (64.37 km/h)34.43 mph (55.4 km/h)
45 mph (72.42 km/h)38.73 mph (62.33 km/h)
50 mph (80.47 km/h)43.03 mph (69.25 km/h)
55 mph (88.51 km/h)47.34 mph (76.18 km/h)
60 mph (96.56 km/h)51.64 mph (83.11 km/h)
65 mph (104.61 km/h)55.94 mph (90.03 km/h)
70 mph (112.65 km/h)60.25 mph (96.96 km/h)
75 mph (120.7 km/h)64.55 mph (103.88 km/h)
80 mph (128.75 km/h)68.85 mph (110.81 km/h)
85 mph (136.79 km/h)73.16 mph (117.73 km/h)
90 mph (144.84 km/h)77.46 mph (124.66 km/h)
95 mph (152.89 km/h)81.76 mph (131.58 km/h)
100 mph (160.93 km/h)86.07 mph (138.51 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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