Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
155/80r19 vs 215/65r16 Tire Comparison Side By Side
  155/80-19 215/65-16 Difference
Diameter inches (mm) 28.76 (730.6) 27 (685.9) -1.76 (-44.7) -6.1%
Width inches (mm) 6.1 (155) 8.46 (215) 2.36 (60) 38.7%
Circum. inches (mm) 90.36 (2295.25) 84.84 (2154.82) -5.53 (-140.43) -6.1%
Sidewall Height inches (mm) 4.88 (124) 5.5 (139.75) 0.62 (15.75) 12.7%
Revolutions per mile (km) 701.16 (435.68) 746.86 (464.08) 45.69 (28.39) 6.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.78 mph (30.22 km/h)
25 mph (40.23 km/h)23.47 mph (37.77 km/h)
30 mph (48.28 km/h)28.16 mph (45.33 km/h)
35 mph (56.33 km/h)32.86 mph (52.88 km/h)
40 mph (64.37 km/h)37.55 mph (60.44 km/h)
45 mph (72.42 km/h)42.25 mph (67.99 km/h)
50 mph (80.47 km/h)46.94 mph (75.54 km/h)
55 mph (88.51 km/h)51.63 mph (83.1 km/h)
60 mph (96.56 km/h)56.33 mph (90.65 km/h)
65 mph (104.61 km/h)61.02 mph (98.21 km/h)
70 mph (112.65 km/h)65.72 mph (105.76 km/h)
75 mph (120.7 km/h)70.41 mph (113.32 km/h)
80 mph (128.75 km/h)75.11 mph (120.87 km/h)
85 mph (136.79 km/h)79.8 mph (128.43 km/h)
90 mph (144.84 km/h)84.49 mph (135.98 km/h)
95 mph (152.89 km/h)89.19 mph (143.53 km/h)
100 mph (160.93 km/h)93.88 mph (151.09 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
19012208237824832596267727662871301731623324345336883947414942784351461849905799
Better Fuel Economy Factory Ratios Increased Power

Most Popular 155/80-R19 Comparisons

To Top