Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
225/60r17 vs 215/65r16 Tire Comparison Side By Side
  225/60-17 215/65-16 Difference
Diameter inches (mm) 27.63 (701.8) 27 (685.9) -0.63 (-15.9) -2.3%
Width inches (mm) 8.86 (225) 8.46 (215) -0.39 (-10) -4.4%
Circum. inches (mm) 86.8 (2204.77) 84.84 (2154.82) -1.97 (-49.95) -2.3%
Sidewall Height inches (mm) 5.31 (135) 5.5 (139.75) 0.19 (4.75) 3.5%
Revolutions per mile (km) 729.94 (453.56) 746.86 (464.08) 16.92 (10.51) 2.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.55 mph (31.46 km/h)
25 mph (40.23 km/h)24.43 mph (39.32 km/h)
30 mph (48.28 km/h)29.32 mph (47.19 km/h)
35 mph (56.33 km/h)34.21 mph (55.05 km/h)
40 mph (64.37 km/h)39.09 mph (62.92 km/h)
45 mph (72.42 km/h)43.98 mph (70.78 km/h)
50 mph (80.47 km/h)48.87 mph (78.64 km/h)
55 mph (88.51 km/h)53.75 mph (86.51 km/h)
60 mph (96.56 km/h)58.64 mph (94.37 km/h)
65 mph (104.61 km/h)63.53 mph (102.24 km/h)
70 mph (112.65 km/h)68.41 mph (110.1 km/h)
75 mph (120.7 km/h)73.3 mph (117.97 km/h)
80 mph (128.75 km/h)78.19 mph (125.83 km/h)
85 mph (136.79 km/h)83.07 mph (133.7 km/h)
90 mph (144.84 km/h)87.96 mph (141.56 km/h)
95 mph (152.89 km/h)92.85 mph (149.42 km/h)
100 mph (160.93 km/h)97.73 mph (157.29 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
19012208237824832596267727662871301731623324345336883947414942784351461849905799
Better Fuel Economy Factory Ratios Increased Power

Most Popular 225/60-R17 Comparisons

To Top