Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/45r15 vs 205/60r13 Tire Comparison Side By Side
  215/45-15 205/60-13 Difference
Diameter inches (mm) 22.62 (574.5) 22.69 (576.2) 0.07 (1.7) 0.3%
Width inches (mm) 8.46 (215) 8.07 (205) -0.39 (-10) -4.7%
Circum. inches (mm) 71.06 (1804.84) 71.27 (1810.19) 0.21 (5.34) 0.3%
Sidewall Height inches (mm) 3.81 (96.75) 4.84 (123) 1.03 (26.25) 27.1%
Revolutions per mile (km) 891.68 (554.06) 889.05 (552.43) -2.63 (-1.63) -0.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.06 mph (32.28 km/h)
25 mph (40.23 km/h)25.07 mph (40.35 km/h)
30 mph (48.28 km/h)30.09 mph (48.42 km/h)
35 mph (56.33 km/h)35.1 mph (56.49 km/h)
40 mph (64.37 km/h)40.12 mph (64.56 km/h)
45 mph (72.42 km/h)45.13 mph (72.63 km/h)
50 mph (80.47 km/h)50.15 mph (80.71 km/h)
55 mph (88.51 km/h)55.16 mph (88.78 km/h)
60 mph (96.56 km/h)60.18 mph (96.85 km/h)
65 mph (104.61 km/h)65.19 mph (104.92 km/h)
70 mph (112.65 km/h)70.21 mph (112.99 km/h)
75 mph (120.7 km/h)75.22 mph (121.06 km/h)
80 mph (128.75 km/h)80.24 mph (129.13 km/h)
85 mph (136.79 km/h)85.25 mph (137.2 km/h)
90 mph (144.84 km/h)90.27 mph (145.27 km/h)
95 mph (152.89 km/h)95.28 mph (153.34 km/h)
100 mph (160.93 km/h)100.3 mph (161.41 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
22622628283029563090318732933418359137643957411143904698493950935180549759406903
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/45-R15 Comparisons

To Top