Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/75r16 vs 315/75r16 Tire Comparison Side By Side
  275/75-16 315/75-16 Difference
Diameter inches (mm) 32.24 (818.9) 34.6 (878.9) 2.36 (60) 7.3%
Width inches (mm) 10.83 (275) 12.4 (315) 1.57 (40) 14.5%
Circum. inches (mm) 101.29 (2572.65) 108.71 (2761.15) 7.42 (188.5) 7.3%
Sidewall Height inches (mm) 8.12 (206.25) 9.3 (236.25) 1.18 (30) 14.5%
Revolutions per mile (km) 625.56 (388.7) 582.85 (362.17) -42.71 (-26.54) -6.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.47 mph (34.55 km/h)
25 mph (40.23 km/h)26.83 mph (43.18 km/h)
30 mph (48.28 km/h)32.2 mph (51.82 km/h)
35 mph (56.33 km/h)37.56 mph (60.45 km/h)
40 mph (64.37 km/h)42.93 mph (69.09 km/h)
45 mph (72.42 km/h)48.3 mph (77.73 km/h)
50 mph (80.47 km/h)53.66 mph (86.36 km/h)
55 mph (88.51 km/h)59.03 mph (95 km/h)
60 mph (96.56 km/h)64.4 mph (103.64 km/h)
65 mph (104.61 km/h)69.76 mph (112.27 km/h)
70 mph (112.65 km/h)75.13 mph (120.91 km/h)
75 mph (120.7 km/h)80.5 mph (129.54 km/h)
80 mph (128.75 km/h)85.86 mph (138.18 km/h)
85 mph (136.79 km/h)91.23 mph (146.82 km/h)
90 mph (144.84 km/h)96.59 mph (155.45 km/h)
95 mph (152.89 km/h)101.96 mph (164.09 km/h)
100 mph (160.93 km/h)107.33 mph (172.73 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
14831723185619382026208921592241235424682594269528783080323833393396360438944525
Better Fuel Economy Factory Ratios Increased Power

Most Popular 275/75-R16 Comparisons

To Top