Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/60r15 vs 295/60r15 Tire Comparison Side By Side
  265/60-15 295/60-15 Difference
Diameter inches (mm) 27.52 (699) 28.94 (735) 1.42 (36) 5.2%
Width inches (mm) 10.43 (265) 11.61 (295) 1.18 (30) 11.3%
Circum. inches (mm) 86.46 (2195.97) 90.91 (2309.07) 4.45 (113.1) 5.2%
Sidewall Height inches (mm) 6.26 (159) 6.97 (177) 0.71 (18) 11.3%
Revolutions per mile (km) 732.86 (455.38) 696.97 (433.07) -35.9 (-22.3) -4.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.03 mph (33.84 km/h)
25 mph (40.23 km/h)26.29 mph (42.31 km/h)
30 mph (48.28 km/h)31.55 mph (50.77 km/h)
35 mph (56.33 km/h)36.8 mph (59.23 km/h)
40 mph (64.37 km/h)42.06 mph (67.69 km/h)
45 mph (72.42 km/h)47.32 mph (76.15 km/h)
50 mph (80.47 km/h)52.58 mph (84.61 km/h)
55 mph (88.51 km/h)57.83 mph (93.07 km/h)
60 mph (96.56 km/h)63.09 mph (101.53 km/h)
65 mph (104.61 km/h)68.35 mph (110 km/h)
70 mph (112.65 km/h)73.61 mph (118.46 km/h)
75 mph (120.7 km/h)78.86 mph (126.92 km/h)
80 mph (128.75 km/h)84.12 mph (135.38 km/h)
85 mph (136.79 km/h)89.38 mph (143.84 km/h)
90 mph (144.84 km/h)94.64 mph (152.3 km/h)
95 mph (152.89 km/h)99.89 mph (160.76 km/h)
100 mph (160.93 km/h)105.15 mph (169.22 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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