Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/60r13 vs 215/50r13 Tire Comparison Side By Side
  205/60-13 215/50-13 Difference
Diameter inches (mm) 22.69 (576.2) 21.46 (545.2) -1.22 (-31) -5.4%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 71.27 (1810.19) 67.43 (1712.8) -3.83 (-97.39) -5.4%
Sidewall Height inches (mm) 4.84 (123) 4.23 (107.5) -0.61 (-15.5) -12.6%
Revolutions per mile (km) 889.05 (552.43) 939.6 (583.84) 50.55 (31.41) 5.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.92 mph (30.46 km/h)
25 mph (40.23 km/h)23.65 mph (38.07 km/h)
30 mph (48.28 km/h)28.39 mph (45.68 km/h)
35 mph (56.33 km/h)33.12 mph (53.3 km/h)
40 mph (64.37 km/h)37.85 mph (60.91 km/h)
45 mph (72.42 km/h)42.58 mph (68.52 km/h)
50 mph (80.47 km/h)47.31 mph (76.14 km/h)
55 mph (88.51 km/h)52.04 mph (83.75 km/h)
60 mph (96.56 km/h)56.77 mph (91.37 km/h)
65 mph (104.61 km/h)61.5 mph (98.98 km/h)
70 mph (112.65 km/h)66.23 mph (106.59 km/h)
75 mph (120.7 km/h)70.96 mph (114.21 km/h)
80 mph (128.75 km/h)75.7 mph (121.82 km/h)
85 mph (136.79 km/h)80.43 mph (129.43 km/h)
90 mph (144.84 km/h)85.16 mph (137.05 km/h)
95 mph (152.89 km/h)89.89 mph (144.66 km/h)
100 mph (160.93 km/h)94.62 mph (152.28 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Better Fuel Economy Factory Ratios Increased Power

Most Popular 205/60-R13 Comparisons

To Top