Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/55r17 vs 235/40r19 Tire Comparison Side By Side
  215/55-17 235/40-19 Difference
Diameter inches (mm) 26.31 (668.3) 26.4 (670.6) 0.09 (2.3) 0.3%
Width inches (mm) 8.46 (215) 9.25 (235) 0.79 (20) 9.3%
Circum. inches (mm) 82.66 (2099.53) 82.94 (2106.75) 0.28 (7.23) 0.3%
Sidewall Height inches (mm) 4.66 (118.25) 3.7 (94) -0.95 (-24.25) -20.5%
Revolutions per mile (km) 766.53 (476.3) 763.9 (474.66) -2.63 (-1.63) -0.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.07 mph (32.3 km/h)
25 mph (40.23 km/h)25.09 mph (40.37 km/h)
30 mph (48.28 km/h)30.1 mph (48.45 km/h)
35 mph (56.33 km/h)35.12 mph (56.52 km/h)
40 mph (64.37 km/h)40.14 mph (64.6 km/h)
45 mph (72.42 km/h)45.15 mph (72.67 km/h)
50 mph (80.47 km/h)50.17 mph (80.74 km/h)
55 mph (88.51 km/h)55.19 mph (88.82 km/h)
60 mph (96.56 km/h)60.21 mph (96.89 km/h)
65 mph (104.61 km/h)65.22 mph (104.97 km/h)
70 mph (112.65 km/h)70.24 mph (113.04 km/h)
75 mph (120.7 km/h)75.26 mph (121.12 km/h)
80 mph (128.75 km/h)80.28 mph (129.19 km/h)
85 mph (136.79 km/h)85.29 mph (137.27 km/h)
90 mph (144.84 km/h)90.31 mph (145.34 km/h)
95 mph (152.89 km/h)95.33 mph (153.41 km/h)
100 mph (160.93 km/h)100.34 mph (161.49 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
19442258243225402655273828292937308632343400353237724037424443764450472351045931
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/55-R17 Comparisons

To Top