Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/60r18 vs 215/70r16 Tire Comparison Side By Side
  205/60-18 215/70-16 Difference
Diameter inches (mm) 27.69 (703.2) 27.85 (707.4) 0.17 (4.2) 0.6%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 86.98 (2209.17) 87.49 (2222.36) 0.52 (13.19) 0.6%
Sidewall Height inches (mm) 4.84 (123) 5.93 (150.5) 1.08 (27.5) 22.4%
Revolutions per mile (km) 728.48 (452.66) 724.16 (449.97) -4.33 (-2.69) -0.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.12 mph (32.38 km/h)
25 mph (40.23 km/h)25.15 mph (40.47 km/h)
30 mph (48.28 km/h)30.18 mph (48.57 km/h)
35 mph (56.33 km/h)35.21 mph (56.66 km/h)
40 mph (64.37 km/h)40.24 mph (64.76 km/h)
45 mph (72.42 km/h)45.27 mph (72.85 km/h)
50 mph (80.47 km/h)50.3 mph (80.95 km/h)
55 mph (88.51 km/h)55.33 mph (89.04 km/h)
60 mph (96.56 km/h)60.36 mph (97.14 km/h)
65 mph (104.61 km/h)65.39 mph (105.23 km/h)
70 mph (112.65 km/h)70.42 mph (113.33 km/h)
75 mph (120.7 km/h)75.45 mph (121.42 km/h)
80 mph (128.75 km/h)80.48 mph (129.52 km/h)
85 mph (136.79 km/h)85.51 mph (137.61 km/h)
90 mph (144.84 km/h)90.54 mph (145.71 km/h)
95 mph (152.89 km/h)95.57 mph (153.8 km/h)
100 mph (160.93 km/h)100.6 mph (161.9 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
18432141230624072517259626822784292530663223334835763827402341484219447848385623
Better Fuel Economy Factory Ratios Increased Power

Most Popular 205/60-R18 Comparisons

To Top