Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
125/90r16 vs 265/95r16 Tire Comparison Side By Side
  125/90-16 265/95-16 Difference
Diameter inches (mm) 24.86 (631.4) 35.82 (909.9) 10.96 (278.5) 44.1%
Width inches (mm) 4.92 (125) 10.43 (265) 5.51 (140) 112%
Circum. inches (mm) 78.09 (1983.6) 112.54 (2858.54) 34.45 (874.93) 44.1%
Sidewall Height inches (mm) 4.43 (112.5) 9.91 (251.75) 5.48 (139.25) 123.8%
Revolutions per mile (km) 811.32 (504.13) 563 (349.83) -248.33 (-154.3) -30.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)28.82 mph (46.38 km/h)
25 mph (40.23 km/h)36.03 mph (57.98 km/h)
30 mph (48.28 km/h)43.23 mph (69.58 km/h)
35 mph (56.33 km/h)50.44 mph (81.17 km/h)
40 mph (64.37 km/h)57.64 mph (92.77 km/h)
45 mph (72.42 km/h)64.85 mph (104.36 km/h)
50 mph (80.47 km/h)72.05 mph (115.96 km/h)
55 mph (88.51 km/h)79.26 mph (127.56 km/h)
60 mph (96.56 km/h)86.46 mph (139.15 km/h)
65 mph (104.61 km/h)93.67 mph (150.75 km/h)
70 mph (112.65 km/h)100.88 mph (162.34 km/h)
75 mph (120.7 km/h)108.08 mph (173.94 km/h)
80 mph (128.75 km/h)115.29 mph (185.54 km/h)
85 mph (136.79 km/h)122.49 mph (197.13 km/h)
90 mph (144.84 km/h)129.7 mph (208.73 km/h)
95 mph (152.89 km/h)136.9 mph (220.32 km/h)
100 mph (160.93 km/h)144.11 mph (231.92 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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