Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/65r15 vs 295/60r15 Tire Comparison Side By Side
  295/65-15 295/60-15 Difference
Diameter inches (mm) 30.1 (764.5) 28.94 (735) -1.16 (-29.5) -3.9%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 94.56 (2401.75) 90.91 (2309.07) -3.65 (-92.68) -3.9%
Sidewall Height inches (mm) 7.55 (191.75) 6.97 (177) -0.58 (-14.75) -7.7%
Revolutions per mile (km) 670.07 (416.36) 696.97 (433.07) 26.89 (16.71) 4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.23 mph (30.94 km/h)
25 mph (40.23 km/h)24.04 mph (38.68 km/h)
30 mph (48.28 km/h)28.84 mph (46.42 km/h)
35 mph (56.33 km/h)33.65 mph (54.15 km/h)
40 mph (64.37 km/h)38.46 mph (61.89 km/h)
45 mph (72.42 km/h)43.26 mph (69.63 km/h)
50 mph (80.47 km/h)48.07 mph (77.36 km/h)
55 mph (88.51 km/h)52.88 mph (85.1 km/h)
60 mph (96.56 km/h)57.68 mph (92.83 km/h)
65 mph (104.61 km/h)62.49 mph (100.57 km/h)
70 mph (112.65 km/h)67.3 mph (108.31 km/h)
75 mph (120.7 km/h)72.11 mph (116.04 km/h)
80 mph (128.75 km/h)76.91 mph (123.78 km/h)
85 mph (136.79 km/h)81.72 mph (131.52 km/h)
90 mph (144.84 km/h)86.53 mph (139.25 km/h)
95 mph (152.89 km/h)91.33 mph (146.99 km/h)
100 mph (160.93 km/h)96.14 mph (154.72 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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