Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
100/90r10 vs 110/90r10 Tire Comparison Side By Side
  100/90-10 110/90-10 Difference
Diameter inches (mm) 17.09 (434) 17.8 (452) 0.71 (18) 4.1%
Width inches (mm) 3.94 (100) 4.33 (110) 0.39 (10) 10%
Circum. inches (mm) 53.68 (1363.45) 55.91 (1420) 2.23 (56.55) 4.1%
Sidewall Height inches (mm) 3.54 (90) 3.9 (99) 0.35 (9) 10%
Revolutions per mile (km) 1180.35 (733.43) 1133.34 (704.22) -47 (-29.21) -4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.83 mph (33.52 km/h)
25 mph (40.23 km/h)26.04 mph (41.9 km/h)
30 mph (48.28 km/h)31.24 mph (50.28 km/h)
35 mph (56.33 km/h)36.45 mph (58.66 km/h)
40 mph (64.37 km/h)41.66 mph (67.04 km/h)
45 mph (72.42 km/h)46.87 mph (75.42 km/h)
50 mph (80.47 km/h)52.07 mph (83.8 km/h)
55 mph (88.51 km/h)57.28 mph (92.19 km/h)
60 mph (96.56 km/h)62.49 mph (100.57 km/h)
65 mph (104.61 km/h)67.7 mph (108.95 km/h)
70 mph (112.65 km/h)72.9 mph (117.33 km/h)
75 mph (120.7 km/h)78.11 mph (125.71 km/h)
80 mph (128.75 km/h)83.32 mph (134.09 km/h)
85 mph (136.79 km/h)88.53 mph (142.47 km/h)
90 mph (144.84 km/h)93.73 mph (150.85 km/h)
95 mph (152.89 km/h)98.94 mph (159.23 km/h)
100 mph (160.93 km/h)104.15 mph (167.61 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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