Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/60r16 vs 33/10.5r16 Tire Comparison Side By Side
  265/60-16 33/10.5-16 Difference
Diameter inches (mm) 28.52 (724.4) 33.03 (838.94) 4.51 (114.54) 15.8%
Width inches (mm) 10.43 (265) 10.51 (267) 0.08 (2) 0.8%
Circum. inches (mm) 89.6 (2275.77) 103.76 (2635.61) 14.17 (359.84) 15.8%
Sidewall Height inches (mm) 6.26 (159) 8.51 (216.27) 2.25 (57.27) 36%
Revolutions per mile (km) 707.16 (439.41) 610.62 (379.42) -96.55 (-59.99) -13.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)23.16 mph (37.28 km/h)
25 mph (40.23 km/h)28.95 mph (46.6 km/h)
30 mph (48.28 km/h)34.74 mph (55.91 km/h)
35 mph (56.33 km/h)40.53 mph (65.23 km/h)
40 mph (64.37 km/h)46.32 mph (74.55 km/h)
45 mph (72.42 km/h)52.12 mph (83.87 km/h)
50 mph (80.47 km/h)57.91 mph (93.19 km/h)
55 mph (88.51 km/h)63.7 mph (102.51 km/h)
60 mph (96.56 km/h)69.49 mph (111.83 km/h)
65 mph (104.61 km/h)75.28 mph (121.15 km/h)
70 mph (112.65 km/h)81.07 mph (130.47 km/h)
75 mph (120.7 km/h)86.86 mph (139.79 km/h)
80 mph (128.75 km/h)92.65 mph (149.1 km/h)
85 mph (136.79 km/h)98.44 mph (158.42 km/h)
90 mph (144.84 km/h)104.23 mph (167.74 km/h)
95 mph (152.89 km/h)110.02 mph (177.06 km/h)
100 mph (160.93 km/h)115.81 mph (186.38 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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