Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
80/80r17 vs 95/80r16 Tire Comparison Side By Side
  80/80-17 95/80-16 Difference
Diameter inches (mm) 22.04 (559.8) 21.98 (558.4) -0.06 (-1.4) -0.3%
Width inches (mm) 3.15 (80) 3.74 (95) 0.59 (15) 18.8%
Circum. inches (mm) 69.24 (1758.66) 69.07 (1754.27) -0.17 (-4.4) -0.3%
Sidewall Height inches (mm) 2.52 (64) 2.99 (76) 0.47 (12) 18.8%
Revolutions per mile (km) 915.09 (568.61) 917.39 (570.04) 2.29 (1.43) 0.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.95 mph (32.11 km/h)
25 mph (40.23 km/h)24.94 mph (40.13 km/h)
30 mph (48.28 km/h)29.92 mph (48.16 km/h)
35 mph (56.33 km/h)34.91 mph (56.19 km/h)
40 mph (64.37 km/h)39.9 mph (64.21 km/h)
45 mph (72.42 km/h)44.89 mph (72.24 km/h)
50 mph (80.47 km/h)49.87 mph (80.27 km/h)
55 mph (88.51 km/h)54.86 mph (88.29 km/h)
60 mph (96.56 km/h)59.85 mph (96.32 km/h)
65 mph (104.61 km/h)64.84 mph (104.35 km/h)
70 mph (112.65 km/h)69.82 mph (112.37 km/h)
75 mph (120.7 km/h)74.81 mph (120.4 km/h)
80 mph (128.75 km/h)79.8 mph (128.43 km/h)
85 mph (136.79 km/h)84.79 mph (136.45 km/h)
90 mph (144.84 km/h)89.77 mph (144.48 km/h)
95 mph (152.89 km/h)94.76 mph (152.51 km/h)
100 mph (160.93 km/h)99.75 mph (160.53 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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