Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
36/12.5r16.5 vs 35/15.5r16.5 Tire Comparison Side By Side
  36/12.5-16.5 35/15.5-16.5 Difference
Diameter inches (mm) 36.03 (915.18) 35.11 (891.9) -0.92 (-23.28) -2.5%
Width inches (mm) 12.52 (318) 15.51 (394) 2.99 (76) 23.9%
Circum. inches (mm) 113.19 (2875.12) 110.31 (2801.99) -2.88 (-73.14) -2.5%
Sidewall Height inches (mm) 9.77 (248.04) 9.31 (236.4) -0.46 (-11.64) -4.7%
Revolutions per mile (km) 559.75 (347.81) 574.36 (356.89) 14.61 (9.08) 2.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.49 mph (31.37 km/h)
25 mph (40.23 km/h)24.36 mph (39.21 km/h)
30 mph (48.28 km/h)29.24 mph (47.05 km/h)
35 mph (56.33 km/h)34.11 mph (54.89 km/h)
40 mph (64.37 km/h)38.98 mph (62.74 km/h)
45 mph (72.42 km/h)43.86 mph (70.58 km/h)
50 mph (80.47 km/h)48.73 mph (78.42 km/h)
55 mph (88.51 km/h)53.6 mph (86.26 km/h)
60 mph (96.56 km/h)58.47 mph (94.1 km/h)
65 mph (104.61 km/h)63.35 mph (101.95 km/h)
70 mph (112.65 km/h)68.22 mph (109.79 km/h)
75 mph (120.7 km/h)73.09 mph (117.63 km/h)
80 mph (128.75 km/h)77.96 mph (125.47 km/h)
85 mph (136.79 km/h)82.84 mph (133.31 km/h)
90 mph (144.84 km/h)87.71 mph (141.16 km/h)
95 mph (152.89 km/h)92.58 mph (149 km/h)
100 mph (160.93 km/h)97.46 mph (156.84 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
14621698182919091997205921272208232024322556265628363035319132903346355138384460
Better Fuel Economy Factory Ratios Increased Power

Most Popular 36/12.5-R16.5 Comparisons

To Top