Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
145/80r14 vs 195/60r14 Tire Comparison Side By Side
  145/80-14 195/60-14 Difference
Diameter inches (mm) 23.13 (587.6) 23.21 (589.6) 0.08 (2) 0.3%
Width inches (mm) 5.71 (145) 7.68 (195) 1.97 (50) 34.5%
Circum. inches (mm) 72.68 (1846) 72.92 (1852.28) 0.25 (6.28) 0.3%
Sidewall Height inches (mm) 4.57 (116) 4.61 (117) 0.04 (1) 0.9%
Revolutions per mile (km) 871.8 (541.71) 868.84 (539.87) -2.96 (-1.84) -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 (48.44 km/h)
35 mph (56.33 km/h)35.12 mph (56.52 km/h)
40 mph (64.37 km/h)40.14 mph (64.59 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)60.2 mph (96.89 km/h)
65 mph (104.61 km/h)65.22 mph (104.96 km/h)
70 mph (112.65 km/h)70.24 mph (113.04 km/h)
75 mph (120.7 km/h)75.26 mph (121.11 km/h)
80 mph (128.75 km/h)80.27 mph (129.19 km/h)
85 mph (136.79 km/h)85.29 mph (137.26 km/h)
90 mph (144.84 km/h)90.31 mph (145.33 km/h)
95 mph (152.89 km/h)95.32 mph (153.41 km/h)
100 mph (160.93 km/h)100.34 mph (161.48 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
22112569276628883020311432183340350936793867401842904591482749775062537258056746
Better Fuel Economy Factory Ratios Increased Power

Most Popular 145/80-R14 Comparisons

To Top