Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
170/60r16 vs 130/90r16 Tire Comparison Side By Side
  170/60-16 130/90-16 Difference
Diameter inches (mm) 24.03 (610.4) 25.21 (640.4) 1.18 (30) 4.9%
Width inches (mm) 6.69 (170) 5.12 (130) -1.57 (-40) -23.5%
Circum. inches (mm) 75.5 (1917.63) 79.21 (2011.88) 3.71 (94.25) 4.9%
Sidewall Height inches (mm) 4.02 (102) 4.61 (117) 0.59 (15) 14.7%
Revolutions per mile (km) 839.24 (521.48) 799.92 (497.05) -39.31 (-24.43) -4.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.98 mph (33.77 km/h)
25 mph (40.23 km/h)26.23 mph (42.21 km/h)
30 mph (48.28 km/h)31.47 mph (50.65 km/h)
35 mph (56.33 km/h)36.72 mph (59.1 km/h)
40 mph (64.37 km/h)41.97 mph (67.54 km/h)
45 mph (72.42 km/h)47.21 mph (75.98 km/h)
50 mph (80.47 km/h)52.46 mph (84.42 km/h)
55 mph (88.51 km/h)57.7 mph (92.86 km/h)
60 mph (96.56 km/h)62.95 mph (101.31 km/h)
65 mph (104.61 km/h)68.19 mph (109.75 km/h)
70 mph (112.65 km/h)73.44 mph (118.19 km/h)
75 mph (120.7 km/h)78.69 mph (126.63 km/h)
80 mph (128.75 km/h)83.93 mph (135.08 km/h)
85 mph (136.79 km/h)89.18 mph (143.52 km/h)
90 mph (144.84 km/h)94.42 mph (151.96 km/h)
95 mph (152.89 km/h)99.67 mph (160.4 km/h)
100 mph (160.93 km/h)104.91 mph (168.84 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
20362365254726592781286729633075323133873560369939504227444445824660494653456211
Better Fuel Economy Factory Ratios Increased Power

Most Popular 170/60-R16 Comparisons

To Top