Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
226/60r16 vs 215/60r16 Tire Comparison Side By Side
  226/60-16 215/60-16 Difference
Diameter inches (mm) 26.68 (677.6) 26.16 (664.4) -0.52 (-13.2) -1.9%
Width inches (mm) 8.9 (226) 8.46 (215) -0.43 (-11) -4.9%
Circum. inches (mm) 83.81 (2128.74) 82.18 (2087.27) -1.63 (-41.47) -1.9%
Sidewall Height inches (mm) 5.34 (135.6) 5.08 (129) -0.26 (-6.6) -4.9%
Revolutions per mile (km) 756.01 (469.76) 771.03 (479.09) 15.02 (9.33) 2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.61 mph (31.56 km/h)
25 mph (40.23 km/h)24.51 mph (39.45 km/h)
30 mph (48.28 km/h)29.42 mph (47.34 km/h)
35 mph (56.33 km/h)34.32 mph (55.23 km/h)
40 mph (64.37 km/h)39.22 mph (63.12 km/h)
45 mph (72.42 km/h)44.12 mph (71.01 km/h)
50 mph (80.47 km/h)49.03 mph (78.9 km/h)
55 mph (88.51 km/h)53.93 mph (86.79 km/h)
60 mph (96.56 km/h)58.83 mph (94.68 km/h)
65 mph (104.61 km/h)63.73 mph (102.57 km/h)
70 mph (112.65 km/h)68.64 mph (110.46 km/h)
75 mph (120.7 km/h)73.54 mph (118.35 km/h)
80 mph (128.75 km/h)78.44 mph (126.24 km/h)
85 mph (136.79 km/h)83.34 mph (134.13 km/h)
90 mph (144.84 km/h)88.25 mph (142.02 km/h)
95 mph (152.89 km/h)93.15 mph (149.91 km/h)
100 mph (160.93 km/h)98.05 mph (157.8 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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