Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/70r14 vs 235/60r15 Tire Comparison Side By Side
  215/70-14 235/60-15 Difference
Diameter inches (mm) 25.85 (656.6) 26.1 (663) 0.25 (6.4) 1%
Width inches (mm) 8.46 (215) 9.25 (235) 0.79 (20) 9.3%
Circum. inches (mm) 81.21 (2062.77) 82 (2082.88) 0.79 (20.11) 1%
Sidewall Height inches (mm) 5.93 (150.5) 5.55 (141) -0.37 (-9.5) -6.3%
Revolutions per mile (km) 780.19 (484.78) 772.65 (480.1) -7.53 (-4.68) -1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.19 mph (32.5 km/h)
25 mph (40.23 km/h)25.24 mph (40.63 km/h)
30 mph (48.28 km/h)30.29 mph (48.75 km/h)
35 mph (56.33 km/h)35.34 mph (56.88 km/h)
40 mph (64.37 km/h)40.39 mph (65 km/h)
45 mph (72.42 km/h)45.44 mph (73.13 km/h)
50 mph (80.47 km/h)50.49 mph (81.25 km/h)
55 mph (88.51 km/h)55.54 mph (89.38 km/h)
60 mph (96.56 km/h)60.58 mph (97.5 km/h)
65 mph (104.61 km/h)65.63 mph (105.63 km/h)
70 mph (112.65 km/h)70.68 mph (113.75 km/h)
75 mph (120.7 km/h)75.73 mph (121.88 km/h)
80 mph (128.75 km/h)80.78 mph (130 km/h)
85 mph (136.79 km/h)85.83 mph (138.13 km/h)
90 mph (144.84 km/h)90.88 mph (146.25 km/h)
95 mph (152.89 km/h)95.93 mph (154.38 km/h)
100 mph (160.93 km/h)100.97 mph (162.5 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
19662284246025692686276928622970312132723439357338154083429244264501477851625999
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/70-R14 Comparisons

To Top