Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
155/82r13 vs 205/95r13 Tire Comparison Side By Side
  155/82-13 205/95-13 Difference
Diameter inches (mm) 23.01 (584.4) 28.33 (719.7) 5.33 (135.3) 23.2%
Width inches (mm) 6.1 (155) 8.07 (205) 1.97 (50) 32.3%
Circum. inches (mm) 72.28 (1835.95) 89.02 (2261) 16.73 (425.06) 23.2%
Sidewall Height inches (mm) 5 (127.1) 7.67 (194.75) 2.66 (67.65) 53.2%
Revolutions per mile (km) 876.57 (544.68) 711.78 (442.28) -164.79 (-102.4) -18.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)24.63 mph (39.64 km/h)
25 mph (40.23 km/h)30.79 mph (49.55 km/h)
30 mph (48.28 km/h)36.95 mph (59.46 km/h)
35 mph (56.33 km/h)43.1 mph (69.37 km/h)
40 mph (64.37 km/h)49.26 mph (79.28 km/h)
45 mph (72.42 km/h)55.42 mph (89.19 km/h)
50 mph (80.47 km/h)61.58 mph (99.1 km/h)
55 mph (88.51 km/h)67.73 mph (109.01 km/h)
60 mph (96.56 km/h)73.89 mph (118.92 km/h)
65 mph (104.61 km/h)80.05 mph (128.83 km/h)
70 mph (112.65 km/h)86.21 mph (138.74 km/h)
75 mph (120.7 km/h)92.36 mph (148.65 km/h)
80 mph (128.75 km/h)98.52 mph (158.56 km/h)
85 mph (136.79 km/h)104.68 mph (168.47 km/h)
90 mph (144.84 km/h)110.84 mph (178.37 km/h)
95 mph (152.89 km/h)116.99 mph (188.28 km/h)
100 mph (160.93 km/h)123.15 mph (198.19 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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