Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/70r17 vs 275/65r15 Tire Comparison Side By Side
  195/70-17 275/65-15 Difference
Diameter inches (mm) 27.75 (704.8) 29.07 (738.5) 1.33 (33.7) 4.8%
Width inches (mm) 7.68 (195) 10.83 (275) 3.15 (80) 41%
Circum. inches (mm) 87.17 (2214.19) 91.34 (2320.07) 4.17 (105.87) 4.8%
Sidewall Height inches (mm) 5.37 (136.5) 7.04 (178.75) 1.66 (42.25) 31%
Revolutions per mile (km) 726.83 (451.63) 693.66 (431.02) -33.17 (-20.61) -4.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.96 mph (33.73 km/h)
25 mph (40.23 km/h)26.2 mph (42.16 km/h)
30 mph (48.28 km/h)31.43 mph (50.59 km/h)
35 mph (56.33 km/h)36.67 mph (59.02 km/h)
40 mph (64.37 km/h)41.91 mph (67.45 km/h)
45 mph (72.42 km/h)47.15 mph (75.88 km/h)
50 mph (80.47 km/h)52.39 mph (84.31 km/h)
55 mph (88.51 km/h)57.63 mph (92.75 km/h)
60 mph (96.56 km/h)62.87 mph (101.18 km/h)
65 mph (104.61 km/h)68.11 mph (109.61 km/h)
70 mph (112.65 km/h)73.35 mph (118.04 km/h)
75 mph (120.7 km/h)78.59 mph (126.47 km/h)
80 mph (128.75 km/h)83.83 mph (134.9 km/h)
85 mph (136.79 km/h)89.06 mph (143.34 km/h)
90 mph (144.84 km/h)94.3 mph (151.77 km/h)
95 mph (152.89 km/h)99.54 mph (160.2 km/h)
100 mph (160.93 km/h)104.78 mph (168.63 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
17652051220823062411248625692667280229373087320734253666385339744041428946355386
Better Fuel Economy Factory Ratios Increased Power

Most Popular 195/70-R17 Comparisons

To Top