Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/75r17 vs 335/75r17 Tire Comparison Side By Side
  215/75-17 335/75-17 Difference
Diameter inches (mm) 29.7 (754.3) 36.78 (934.3) 7.09 (180) 23.9%
Width inches (mm) 8.46 (215) 13.19 (335) 4.72 (120) 55.8%
Circum. inches (mm) 93.3 (2369.7) 115.56 (2935.19) 22.26 (565.49) 23.9%
Sidewall Height inches (mm) 6.35 (161.25) 9.89 (251.25) 3.54 (90) 55.8%
Revolutions per mile (km) 679.13 (421.99) 548.29 (340.69) -130.84 (-81.3) -19.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)24.77 mph (39.87 km/h)
25 mph (40.23 km/h)30.97 mph (49.83 km/h)
30 mph (48.28 km/h)37.16 mph (59.8 km/h)
35 mph (56.33 km/h)43.35 mph (69.77 km/h)
40 mph (64.37 km/h)49.55 mph (79.74 km/h)
45 mph (72.42 km/h)55.74 mph (89.7 km/h)
50 mph (80.47 km/h)61.93 mph (99.67 km/h)
55 mph (88.51 km/h)68.12 mph (109.64 km/h)
60 mph (96.56 km/h)74.32 mph (119.6 km/h)
65 mph (104.61 km/h)80.51 mph (129.57 km/h)
70 mph (112.65 km/h)86.7 mph (139.54 km/h)
75 mph (120.7 km/h)92.9 mph (149.5 km/h)
80 mph (128.75 km/h)99.09 mph (159.47 km/h)
85 mph (136.79 km/h)105.28 mph (169.44 km/h)
90 mph (144.84 km/h)111.48 mph (179.4 km/h)
95 mph (152.89 km/h)117.67 mph (189.37 km/h)
100 mph (160.93 km/h)123.86 mph (199.34 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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