Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/65r18 vs 295/65r18 Tire Comparison Side By Side
  275/65-18 295/65-18 Difference
Diameter inches (mm) 32.07 (814.7) 33.1 (840.7) 1.02 (26) 3.2%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 100.77 (2559.46) 103.98 (2641.14) 3.22 (81.68) 3.2%
Sidewall Height inches (mm) 7.04 (178.75) 7.55 (191.75) 0.51 (13) 7.3%
Revolutions per mile (km) 628.78 (390.71) 609.34 (378.62) -19.45 (-12.08) -3.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.64 mph (33.21 km/h)
25 mph (40.23 km/h)25.8 mph (41.52 km/h)
30 mph (48.28 km/h)30.96 mph (49.82 km/h)
35 mph (56.33 km/h)36.12 mph (58.12 km/h)
40 mph (64.37 km/h)41.28 mph (66.43 km/h)
45 mph (72.42 km/h)46.44 mph (74.73 km/h)
50 mph (80.47 km/h)51.6 mph (83.04 km/h)
55 mph (88.51 km/h)56.76 mph (91.34 km/h)
60 mph (96.56 km/h)61.91 mph (99.64 km/h)
65 mph (104.61 km/h)67.07 mph (107.95 km/h)
70 mph (112.65 km/h)72.23 mph (116.25 km/h)
75 mph (120.7 km/h)77.39 mph (124.55 km/h)
80 mph (128.75 km/h)82.55 mph (132.86 km/h)
85 mph (136.79 km/h)87.71 mph (141.16 km/h)
90 mph (144.84 km/h)92.87 mph (149.46 km/h)
95 mph (152.89 km/h)98.03 mph (157.77 km/h)
100 mph (160.93 km/h)103.19 mph (166.07 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
15511801194020262118218422572342246125802712281830093220338534913550376840714731
Better Fuel Economy Factory Ratios Increased Power

Most Popular 275/65-R18 Comparisons

To Top