Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
245/75r19.5 vs 235/85r16 Tire Comparison Side By Side
  245/75-19.5 235/85-16 Difference
Diameter inches (mm) 33.97 (862.8) 31.73 (805.9) -2.24 (-56.9) -6.6%
Width inches (mm) 9.65 (245) 9.25 (235) -0.39 (-10) -4.1%
Circum. inches (mm) 106.72 (2710.57) 99.68 (2531.81) -7.04 (-178.76) -6.6%
Sidewall Height inches (mm) 7.23 (183.75) 7.86 (199.75) 0.63 (16) 8.7%
Revolutions per mile (km) 593.73 (368.93) 635.65 (394.97) 41.92 (26.05) 7.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.68 mph (30.06 km/h)
25 mph (40.23 km/h)23.35 mph (37.58 km/h)
30 mph (48.28 km/h)28.02 mph (45.1 km/h)
35 mph (56.33 km/h)32.69 mph (52.61 km/h)
40 mph (64.37 km/h)37.36 mph (60.13 km/h)
45 mph (72.42 km/h)42.03 mph (67.64 km/h)
50 mph (80.47 km/h)46.7 mph (75.16 km/h)
55 mph (88.51 km/h)51.37 mph (82.68 km/h)
60 mph (96.56 km/h)56.04 mph (90.19 km/h)
65 mph (104.61 km/h)60.71 mph (97.71 km/h)
70 mph (112.65 km/h)65.38 mph (105.22 km/h)
75 mph (120.7 km/h)70.05 mph (112.74 km/h)
80 mph (128.75 km/h)74.72 mph (120.26 km/h)
85 mph (136.79 km/h)79.39 mph (127.77 km/h)
90 mph (144.84 km/h)84.06 mph (135.29 km/h)
95 mph (152.89 km/h)88.73 mph (142.81 km/h)
100 mph (160.93 km/h)93.41 mph (150.32 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
16181879202421132210227823542444256826912829293931393359353136413703393042474935
Better Fuel Economy Factory Ratios Increased Power

Most Popular 245/75-R19.5 Comparisons

To Top