Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/45r16 vs 175/65r14 Tire Comparison Side By Side
  195/45-16 175/65-14 Difference
Diameter inches (mm) 22.91 (581.9) 22.96 (583.1) 0.05 (1.2) 0.2%
Width inches (mm) 7.68 (195) 6.89 (175) -0.79 (-20) -10.3%
Circum. inches (mm) 71.97 (1828.09) 72.12 (1831.86) 0.15 (3.77) 0.2%
Sidewall Height inches (mm) 3.45 (87.75) 4.48 (113.75) 1.02 (26) 29.6%
Revolutions per mile (km) 880.34 (547.02) 878.53 (545.89) -1.81 (-1.13) -0.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.04 mph (32.25 km/h)
25 mph (40.23 km/h)25.05 mph (40.32 km/h)
30 mph (48.28 km/h)30.06 mph (48.38 km/h)
35 mph (56.33 km/h)35.07 mph (56.44 km/h)
40 mph (64.37 km/h)40.08 mph (64.51 km/h)
45 mph (72.42 km/h)45.09 mph (72.57 km/h)
50 mph (80.47 km/h)50.1 mph (80.63 km/h)
55 mph (88.51 km/h)55.11 mph (88.7 km/h)
60 mph (96.56 km/h)60.12 mph (96.76 km/h)
65 mph (104.61 km/h)65.13 mph (104.82 km/h)
70 mph (112.65 km/h)70.14 mph (112.89 km/h)
75 mph (120.7 km/h)75.15 mph (120.95 km/h)
80 mph (128.75 km/h)80.16 mph (129.01 km/h)
85 mph (136.79 km/h)85.18 mph (137.08 km/h)
90 mph (144.84 km/h)90.19 mph (145.14 km/h)
95 mph (152.89 km/h)95.2 mph (153.2 km/h)
100 mph (160.93 km/h)100.21 mph (161.27 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
22362597279729213054314932543377354937203910406243384643488050335118543258706821
Better Fuel Economy Factory Ratios Increased Power

Most Popular 195/45-R16 Comparisons

To Top