Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/60r17 vs 215/65r17 Tire Comparison Side By Side
  200/60-17 215/65-17 Difference
Diameter inches (mm) 26.45 (671.8) 28 (711.3) 1.56 (39.5) 5.9%
Width inches (mm) 7.87 (200) 8.46 (215) 0.59 (15) 7.5%
Circum. inches (mm) 83.09 (2110.52) 87.98 (2234.61) 4.89 (124.09) 5.9%
Sidewall Height inches (mm) 4.72 (120) 5.5 (139.75) 0.78 (19.75) 16.5%
Revolutions per mile (km) 762.53 (473.82) 720.19 (447.5) -42.35 (-26.31) -5.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.18 mph (34.08 km/h)
25 mph (40.23 km/h)26.47 mph (42.6 km/h)
30 mph (48.28 km/h)31.76 mph (51.12 km/h)
35 mph (56.33 km/h)37.06 mph (59.64 km/h)
40 mph (64.37 km/h)42.35 mph (68.16 km/h)
45 mph (72.42 km/h)47.65 mph (76.68 km/h)
50 mph (80.47 km/h)52.94 mph (85.2 km/h)
55 mph (88.51 km/h)58.23 mph (93.72 km/h)
60 mph (96.56 km/h)63.53 mph (102.24 km/h)
65 mph (104.61 km/h)68.82 mph (110.76 km/h)
70 mph (112.65 km/h)74.12 mph (119.28 km/h)
75 mph (120.7 km/h)79.41 mph (127.8 km/h)
80 mph (128.75 km/h)84.7 mph (136.32 km/h)
85 mph (136.79 km/h)90 mph (144.84 km/h)
90 mph (144.84 km/h)95.29 mph (153.36 km/h)
95 mph (152.89 km/h)100.59 mph (161.88 km/h)
100 mph (160.93 km/h)105.88 mph (170.4 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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