Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/70r17 vs 225/60r17 Tire Comparison Side By Side
  215/70-17 225/60-17 Difference
Diameter inches (mm) 28.85 (732.8) 27.63 (701.8) -1.22 (-31) -4.2%
Width inches (mm) 8.46 (215) 8.86 (225) 0.39 (10) 4.7%
Circum. inches (mm) 90.64 (2302.16) 86.8 (2204.77) -3.83 (-97.39) -4.2%
Sidewall Height inches (mm) 5.93 (150.5) 5.31 (135) -0.61 (-15.5) -10.3%
Revolutions per mile (km) 699.06 (434.37) 729.94 (453.56) 30.88 (19.19) 4.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.15 mph (30.83 km/h)
25 mph (40.23 km/h)23.94 mph (38.53 km/h)
30 mph (48.28 km/h)28.73 mph (46.24 km/h)
35 mph (56.33 km/h)33.52 mph (53.94 km/h)
40 mph (64.37 km/h)38.31 mph (61.65 km/h)
45 mph (72.42 km/h)43.1 mph (69.36 km/h)
50 mph (80.47 km/h)47.88 mph (77.06 km/h)
55 mph (88.51 km/h)52.67 mph (84.77 km/h)
60 mph (96.56 km/h)57.46 mph (92.48 km/h)
65 mph (104.61 km/h)62.25 mph (100.18 km/h)
70 mph (112.65 km/h)67.04 mph (107.89 km/h)
75 mph (120.7 km/h)71.83 mph (115.59 km/h)
80 mph (128.75 km/h)76.62 mph (123.3 km/h)
85 mph (136.79 km/h)81.4 mph (131.01 km/h)
90 mph (144.84 km/h)86.19 mph (138.71 km/h)
95 mph (152.89 km/h)90.98 mph (146.42 km/h)
100 mph (160.93 km/h)95.77 mph (154.13 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
18582158232424272537261627032806294830913249337536043857405541814253451348775668
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/70-R17 Comparisons

To Top