Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/80r22.5 vs 295/75r22.5 Tire Comparison Side By Side
  275/80-22.5 295/75-22.5 Difference
Diameter inches (mm) 39.82 (1011.5) 39.92 (1014) 0.1 (2.5) 0.2%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 125.11 (3177.72) 125.42 (3185.57) 0.31 (7.85) 0.2%
Sidewall Height inches (mm) 8.66 (220) 8.71 (221.25) 0.05 (1.25) 0.6%
Revolutions per mile (km) 506.45 (314.69) 505.2 (313.91) -1.25 (-0.78) -0.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.05 mph (32.27 km/h)
25 mph (40.23 km/h)25.06 mph (40.33 km/h)
30 mph (48.28 km/h)30.07 mph (48.4 km/h)
35 mph (56.33 km/h)35.09 mph (56.47 km/h)
40 mph (64.37 km/h)40.1 mph (64.53 km/h)
45 mph (72.42 km/h)45.11 mph (72.6 km/h)
50 mph (80.47 km/h)50.12 mph (80.67 km/h)
55 mph (88.51 km/h)55.14 mph (88.73 km/h)
60 mph (96.56 km/h)60.15 mph (96.8 km/h)
65 mph (104.61 km/h)65.16 mph (104.87 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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