Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
165/40r16 vs 165/35r16 Tire Comparison Side By Side
  165/40-16 165/35-16 Difference
Diameter inches (mm) 21.2 (538.4) 20.55 (521.9) -0.65 (-16.5) -3.1%
Width inches (mm) 6.5 (165) 6.5 (165) 0 (0) 0%
Circum. inches (mm) 66.59 (1691.43) 64.55 (1639.6) -2.04 (-51.84) -3.1%
Sidewall Height inches (mm) 2.6 (66) 2.27 (57.75) -0.32 (-8.25) -12.5%
Revolutions per mile (km) 951.47 (591.21) 981.55 (609.9) 30.08 (18.69) 3.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.39 mph (31.2 km/h)
25 mph (40.23 km/h)24.23 mph (39 km/h)
30 mph (48.28 km/h)29.08 mph (46.8 km/h)
35 mph (56.33 km/h)33.93 mph (54.6 km/h)
40 mph (64.37 km/h)38.77 mph (62.4 km/h)
45 mph (72.42 km/h)43.62 mph (70.2 km/h)
50 mph (80.47 km/h)48.47 mph (78 km/h)
55 mph (88.51 km/h)53.31 mph (85.8 km/h)
60 mph (96.56 km/h)58.16 mph (93.6 km/h)
65 mph (104.61 km/h)63.01 mph (101.4 km/h)
70 mph (112.65 km/h)67.85 mph (109.2 km/h)
75 mph (120.7 km/h)72.7 mph (117 km/h)
80 mph (128.75 km/h)77.55 mph (124.8 km/h)
85 mph (136.79 km/h)82.4 mph (132.6 km/h)
90 mph (144.84 km/h)87.24 mph (140.4 km/h)
95 mph (152.89 km/h)92.09 mph (148.2 km/h)
100 mph (160.93 km/h)96.94 mph (156 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Better Fuel Economy Factory Ratios Increased Power

Most Popular 165/40-R16 Comparisons

To Top