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 160/90r13 Tire Comparison Side By Side
  155/82-13 160/90-13 Difference
Diameter inches (mm) 23.01 (584.4) 24.34 (618.2) 1.33 (33.8) 5.8%
Width inches (mm) 6.1 (155) 6.3 (160) 0.2 (5) 3.2%
Circum. inches (mm) 72.28 (1835.95) 76.46 (1942.13) 4.18 (106.19) 5.8%
Sidewall Height inches (mm) 5 (127.1) 5.67 (144) 0.67 (16.9) 13.3%
Revolutions per mile (km) 876.57 (544.68) 828.65 (514.9) -47.93 (-29.78) -5.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.16 mph (34.05 km/h)
25 mph (40.23 km/h)26.45 mph (42.56 km/h)
30 mph (48.28 km/h)31.74 mph (51.07 km/h)
35 mph (56.33 km/h)37.02 mph (59.58 km/h)
40 mph (64.37 km/h)42.31 mph (68.1 km/h)
45 mph (72.42 km/h)47.6 mph (76.61 km/h)
50 mph (80.47 km/h)52.89 mph (85.12 km/h)
55 mph (88.51 km/h)58.18 mph (93.63 km/h)
60 mph (96.56 km/h)63.47 mph (102.15 km/h)
65 mph (104.61 km/h)68.76 mph (110.66 km/h)
70 mph (112.65 km/h)74.05 mph (119.17 km/h)
75 mph (120.7 km/h)79.34 mph (127.68 km/h)
80 mph (128.75 km/h)84.63 mph (136.19 km/h)
85 mph (136.79 km/h)89.92 mph (144.71 km/h)
90 mph (144.84 km/h)95.21 mph (153.22 km/h)
95 mph (152.89 km/h)100.49 mph (161.73 km/h)
100 mph (160.93 km/h)105.78 mph (170.24 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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