Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/70r14 vs 215/60r16 Tire Comparison Side By Side
  215/70-14 215/60-16 Difference
Diameter inches (mm) 25.85 (656.6) 26.16 (664.4) 0.31 (7.8) 1.2%
Width inches (mm) 8.46 (215) 8.46 (215) 0 (0) 0%
Circum. inches (mm) 81.21 (2062.77) 82.18 (2087.27) 0.96 (24.5) 1.2%
Sidewall Height inches (mm) 5.93 (150.5) 5.08 (129) -0.85 (-21.5) -14.3%
Revolutions per mile (km) 780.19 (484.78) 771.03 (479.09) -9.16 (-5.69) -1.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.24 mph (32.57 km/h)
25 mph (40.23 km/h)25.3 mph (40.71 km/h)
30 mph (48.28 km/h)30.36 mph (48.85 km/h)
35 mph (56.33 km/h)35.42 mph (57 km/h)
40 mph (64.37 km/h)40.48 mph (65.14 km/h)
45 mph (72.42 km/h)45.53 mph (73.28 km/h)
50 mph (80.47 km/h)50.59 mph (81.42 km/h)
55 mph (88.51 km/h)55.65 mph (89.57 km/h)
60 mph (96.56 km/h)60.71 mph (97.71 km/h)
65 mph (104.61 km/h)65.77 mph (105.85 km/h)
70 mph (112.65 km/h)70.83 mph (113.99 km/h)
75 mph (120.7 km/h)75.89 mph (122.13 km/h)
80 mph (128.75 km/h)80.95 mph (130.28 km/h)
85 mph (136.79 km/h)86.01 mph (138.42 km/h)
90 mph (144.84 km/h)91.07 mph (146.56 km/h)
95 mph (152.89 km/h)96.13 mph (154.7 km/h)
100 mph (160.93 km/h)101.19 mph (162.85 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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