Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/55r17 vs 215/55r17 Tire Comparison Side By Side
  205/55-17 215/55-17 Difference
Diameter inches (mm) 25.88 (657.3) 26.31 (668.3) 0.43 (11) 1.7%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 81.3 (2064.97) 82.66 (2099.53) 1.36 (34.56) 1.7%
Sidewall Height inches (mm) 4.44 (112.75) 4.66 (118.25) 0.22 (5.5) 4.9%
Revolutions per mile (km) 779.36 (484.27) 766.53 (476.3) -12.83 (-7.97) -1.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.33 mph (32.73 km/h)
25 mph (40.23 km/h)25.42 mph (40.91 km/h)
30 mph (48.28 km/h)30.5 mph (49.09 km/h)
35 mph (56.33 km/h)35.59 mph (57.27 km/h)
40 mph (64.37 km/h)40.67 mph (65.45 km/h)
45 mph (72.42 km/h)45.75 mph (73.63 km/h)
50 mph (80.47 km/h)50.84 mph (81.81 km/h)
55 mph (88.51 km/h)55.92 mph (90 km/h)
60 mph (96.56 km/h)61 mph (98.18 km/h)
65 mph (104.61 km/h)66.09 mph (106.36 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
19512266244025482665274828392947309632463412354437854051425843914466474051225952
Better Fuel Economy Factory Ratios Increased Power

Most Popular 205/55-R17 Comparisons

To Top