Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/45r18 vs 295/35r18 Tire Comparison Side By Side
  295/45-18 295/35-18 Difference
Diameter inches (mm) 28.45 (722.7) 26.13 (663.7) -2.32 (-59) -8.2%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 89.39 (2270.43) 82.09 (2085.08) -7.3 (-185.35) -8.2%
Sidewall Height inches (mm) 5.23 (132.75) 4.06 (103.25) -1.16 (-29.5) -22.2%
Revolutions per mile (km) 708.83 (440.44) 771.84 (479.6) 63.01 (39.15) 8.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.37 mph (29.56 km/h)
25 mph (40.23 km/h)22.96 mph (36.95 km/h)
30 mph (48.28 km/h)27.55 mph (44.34 km/h)
35 mph (56.33 km/h)32.14 mph (51.73 km/h)
40 mph (64.37 km/h)36.73 mph (59.12 km/h)
45 mph (72.42 km/h)41.33 mph (66.51 km/h)
50 mph (80.47 km/h)45.92 mph (73.9 km/h)
55 mph (88.51 km/h)50.51 mph (81.29 km/h)
60 mph (96.56 km/h)55.1 mph (88.68 km/h)
65 mph (104.61 km/h)59.69 mph (96.07 km/h)
70 mph (112.65 km/h)64.29 mph (103.46 km/h)
75 mph (120.7 km/h)68.88 mph (110.85 km/h)
80 mph (128.75 km/h)73.47 mph (118.24 km/h)
85 mph (136.79 km/h)78.06 mph (125.63 km/h)
90 mph (144.84 km/h)82.65 mph (133.02 km/h)
95 mph (152.89 km/h)87.24 mph (140.41 km/h)
100 mph (160.93 km/h)91.84 mph (147.8 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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