Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/50r16 vs 305/50r16 Tire Comparison Side By Side
  295/50-16 305/50-16 Difference
Diameter inches (mm) 27.61 (701.4) 28.01 (711.4) 0.39 (10) 1.4%
Width inches (mm) 11.61 (295) 12.01 (305) 0.39 (10) 3.4%
Circum. inches (mm) 86.75 (2203.51) 87.99 (2234.93) 1.24 (31.42) 1.4%
Sidewall Height inches (mm) 5.81 (147.5) 6 (152.5) 0.2 (5) 3.4%
Revolutions per mile (km) 730.35 (453.82) 720.09 (447.44) -10.27 (-6.38) -1.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.29 mph (32.65 km/h)
25 mph (40.23 km/h)25.36 mph (40.81 km/h)
30 mph (48.28 km/h)30.43 mph (48.97 km/h)
35 mph (56.33 km/h)35.5 mph (57.13 km/h)
40 mph (64.37 km/h)40.57 mph (65.29 km/h)
45 mph (72.42 km/h)45.64 mph (73.45 km/h)
50 mph (80.47 km/h)50.71 mph (81.61 km/h)
55 mph (88.51 km/h)55.78 mph (89.78 km/h)
60 mph (96.56 km/h)60.86 mph (97.94 km/h)
65 mph (104.61 km/h)65.93 mph (106.1 km/h)
70 mph (112.65 km/h)71 mph (114.26 km/h)
75 mph (120.7 km/h)76.07 mph (122.42 km/h)
80 mph (128.75 km/h)81.14 mph (130.58 km/h)
85 mph (136.79 km/h)86.21 mph (138.74 km/h)
90 mph (144.84 km/h)91.28 mph (146.91 km/h)
95 mph (152.89 km/h)96.35 mph (155.07 km/h)
100 mph (160.93 km/h)101.43 mph (163.23 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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