Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/55r19 vs 275/60r18 Tire Comparison Side By Side
  275/55-19 275/60-18 Difference
Diameter inches (mm) 30.91 (785.1) 30.99 (787.2) 0.08 (2.1) 0.3%
Width inches (mm) 10.83 (275) 10.83 (275) 0 (0) 0%
Circum. inches (mm) 97.1 (2466.46) 97.36 (2473.06) 0.26 (6.6) 0.3%
Sidewall Height inches (mm) 5.95 (151.25) 6.5 (165) 0.54 (13.75) 9.1%
Revolutions per mile (km) 652.49 (405.44) 650.75 (404.36) -1.74 (-1.08) -0.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.05 mph (32.27 km/h)
25 mph (40.23 km/h)25.07 mph (40.34 km/h)
30 mph (48.28 km/h)30.08 mph (48.41 km/h)
35 mph (56.33 km/h)35.09 mph (56.48 km/h)
40 mph (64.37 km/h)40.11 mph (64.55 km/h)
45 mph (72.42 km/h)45.12 mph (72.61 km/h)
50 mph (80.47 km/h)50.13 mph (80.68 km/h)
55 mph (88.51 km/h)55.15 mph (88.75 km/h)
60 mph (96.56 km/h)60.16 mph (96.82 km/h)
65 mph (104.61 km/h)65.17 mph (104.89 km/h)
70 mph (112.65 km/h)70.19 mph (112.96 km/h)
75 mph (120.7 km/h)75.2 mph (121.02 km/h)
80 mph (128.75 km/h)80.21 mph (129.09 km/h)
85 mph (136.79 km/h)85.23 mph (137.16 km/h)
90 mph (144.84 km/h)90.24 mph (145.23 km/h)
95 mph (152.89 km/h)95.25 mph (153.3 km/h)
100 mph (160.93 km/h)100.27 mph (161.37 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
16561924207221632262233324102502262927552896300932133439361537283791402443485053
Better Fuel Economy Factory Ratios Increased Power

Most Popular 275/55-R19 Comparisons

To Top