Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
225/65r16 vs 235/65r16 Tire Comparison Side By Side
  225/65-16 235/65-16 Difference
Diameter inches (mm) 27.52 (698.9) 28.03 (711.9) 0.51 (13) 1.9%
Width inches (mm) 8.86 (225) 9.25 (235) 0.39 (10) 4.4%
Circum. inches (mm) 86.44 (2195.66) 88.05 (2236.5) 1.61 (40.84) 1.9%
Sidewall Height inches (mm) 5.76 (146.25) 6.01 (152.75) 0.26 (6.5) 4.4%
Revolutions per mile (km) 732.97 (455.44) 719.58 (447.13) -13.38 (-8.32) -1.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.37 mph (32.79 km/h)
25 mph (40.23 km/h)25.47 mph (40.98 km/h)
30 mph (48.28 km/h)30.56 mph (49.18 km/h)
35 mph (56.33 km/h)35.65 mph (57.37 km/h)
40 mph (64.37 km/h)40.74 mph (65.57 km/h)
45 mph (72.42 km/h)45.84 mph (73.77 km/h)
50 mph (80.47 km/h)50.93 mph (81.96 km/h)
55 mph (88.51 km/h)56.02 mph (90.16 km/h)
60 mph (96.56 km/h)61.12 mph (98.36 km/h)
65 mph (104.61 km/h)66.21 mph (106.55 km/h)
70 mph (112.65 km/h)71.3 mph (114.75 km/h)
75 mph (120.7 km/h)76.4 mph (122.95 km/h)
80 mph (128.75 km/h)81.49 mph (131.14 km/h)
85 mph (136.79 km/h)86.58 mph (139.34 km/h)
90 mph (144.84 km/h)91.67 mph (147.54 km/h)
95 mph (152.89 km/h)96.77 mph (155.73 km/h)
100 mph (160.93 km/h)101.86 mph (163.93 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
18312127229123922501257926652766290730473203332735533803399741224192444948085587
Better Fuel Economy Factory Ratios Increased Power

Most Popular 225/65-R16 Comparisons

To Top