Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
175/80r14 vs 195/75r14 Tire Comparison Side By Side
  175/80-14 195/75-14 Difference
Diameter inches (mm) 25.02 (635.6) 25.52 (648.1) 0.49 (12.5) 2%
Width inches (mm) 6.89 (175) 7.68 (195) 0.79 (20) 11.4%
Circum. inches (mm) 78.61 (1996.8) 80.16 (2036.07) 1.55 (39.27) 2%
Sidewall Height inches (mm) 5.51 (140) 5.76 (146.25) 0.25 (6.25) 4.5%
Revolutions per mile (km) 805.96 (500.8) 790.42 (491.14) -15.54 (-9.66) -1.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.39 mph (32.82 km/h)
25 mph (40.23 km/h)25.49 mph (41.02 km/h)
30 mph (48.28 km/h)30.59 mph (49.23 km/h)
35 mph (56.33 km/h)35.69 mph (57.43 km/h)
40 mph (64.37 km/h)40.79 mph (65.64 km/h)
45 mph (72.42 km/h)45.88 mph (73.84 km/h)
50 mph (80.47 km/h)50.98 mph (82.05 km/h)
55 mph (88.51 km/h)56.08 mph (90.25 km/h)
60 mph (96.56 km/h)61.18 mph (98.46 km/h)
65 mph (104.61 km/h)66.28 mph (106.66 km/h)
70 mph (112.65 km/h)71.38 mph (114.87 km/h)
75 mph (120.7 km/h)76.47 mph (123.07 km/h)
80 mph (128.75 km/h)81.57 mph (131.28 km/h)
85 mph (136.79 km/h)86.67 mph (139.48 km/h)
90 mph (144.84 km/h)91.77 mph (147.69 km/h)
95 mph (152.89 km/h)96.87 mph (155.89 km/h)
100 mph (160.93 km/h)101.97 mph (164.1 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
20112337251626282748283329273039319333473518365539034177439145284605488752816137
Better Fuel Economy Factory Ratios Increased Power

Most Popular 175/80-R14 Comparisons

To Top