Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
365/75r16 vs 295/75r16 Tire Comparison Side By Side
  365/75-16 295/75-16 Difference
Diameter inches (mm) 37.56 (953.9) 33.42 (848.9) -4.13 (-105) -11%
Width inches (mm) 14.37 (365) 11.61 (295) -2.76 (-70) -19.2%
Circum. inches (mm) 117.98 (2996.77) 105 (2666.9) -12.99 (-329.87) -11%
Sidewall Height inches (mm) 10.78 (273.75) 8.71 (221.25) -2.07 (-52.5) -19.2%
Revolutions per mile (km) 537.03 (333.69) 603.45 (374.97) 66.42 (41.27) 12.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.8 mph (28.64 km/h)
25 mph (40.23 km/h)22.25 mph (35.8 km/h)
30 mph (48.28 km/h)26.7 mph (42.97 km/h)
35 mph (56.33 km/h)31.15 mph (50.13 km/h)
40 mph (64.37 km/h)35.6 mph (57.29 km/h)
45 mph (72.42 km/h)40.05 mph (64.45 km/h)
50 mph (80.47 km/h)44.5 mph (71.61 km/h)
55 mph (88.51 km/h)48.95 mph (78.77 km/h)
60 mph (96.56 km/h)53.4 mph (85.93 km/h)
65 mph (104.61 km/h)57.85 mph (93.09 km/h)
70 mph (112.65 km/h)62.29 mph (100.25 km/h)
75 mph (120.7 km/h)66.74 mph (107.41 km/h)
80 mph (128.75 km/h)71.19 mph (114.58 km/h)
85 mph (136.79 km/h)75.64 mph (121.74 km/h)
90 mph (144.84 km/h)80.09 mph (128.9 km/h)
95 mph (152.89 km/h)84.54 mph (136.06 km/h)
100 mph (160.93 km/h)88.99 mph (143.22 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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