Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/70r17 vs 265/65r17 Tire Comparison Side By Side
  265/70-17 265/65-17 Difference
Diameter inches (mm) 31.61 (802.8) 30.56 (776.3) -1.04 (-26.5) -3.3%
Width inches (mm) 10.43 (265) 10.43 (265) 0 (0) 0%
Circum. inches (mm) 99.29 (2522.07) 96.02 (2438.82) -3.28 (-83.25) -3.3%
Sidewall Height inches (mm) 7.3 (185.5) 6.78 (172.25) -0.52 (-13.25) -7.1%
Revolutions per mile (km) 638.1 (396.5) 659.89 (410.03) 21.78 (13.53) 3.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.34 mph (31.12 km/h)
25 mph (40.23 km/h)24.17 mph (38.91 km/h)
30 mph (48.28 km/h)29.01 mph (46.69 km/h)
35 mph (56.33 km/h)33.84 mph (54.47 km/h)
40 mph (64.37 km/h)38.68 mph (62.25 km/h)
45 mph (72.42 km/h)43.51 mph (70.03 km/h)
50 mph (80.47 km/h)48.35 mph (77.81 km/h)
55 mph (88.51 km/h)53.18 mph (85.59 km/h)
60 mph (96.56 km/h)58.02 mph (93.37 km/h)
65 mph (104.61 km/h)62.85 mph (101.15 km/h)
70 mph (112.65 km/h)67.69 mph (108.94 km/h)
75 mph (120.7 km/h)72.52 mph (116.72 km/h)
80 mph (128.75 km/h)77.36 mph (124.5 km/h)
85 mph (136.79 km/h)82.19 mph (132.28 km/h)
90 mph (144.84 km/h)87.03 mph (140.06 km/h)
95 mph (152.89 km/h)91.86 mph (147.84 km/h)
100 mph (160.93 km/h)96.7 mph (155.62 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
16791951210121942294236524442537266527942937305132593487366637803844408044095124
Better Fuel Economy Factory Ratios Increased Power

Most Popular 265/70-R17 Comparisons

To Top