Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
245/70r19.5 vs 235/75r19.5 Tire Comparison Side By Side
  245/70-19.5 235/75-19.5 Difference
Diameter inches (mm) 33 (838.3) 33.38 (847.8) 0.37 (9.5) 1.1%
Width inches (mm) 9.65 (245) 9.25 (235) -0.39 (-10) -4.1%
Circum. inches (mm) 103.68 (2633.6) 104.86 (2663.44) 1.18 (29.85) 1.1%
Sidewall Height inches (mm) 6.75 (171.5) 6.94 (176.25) 0.19 (4.75) 2.8%
Revolutions per mile (km) 611.08 (379.71) 604.23 (375.45) -6.85 (-4.25) -1.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.23 mph (32.55 km/h)
25 mph (40.23 km/h)25.28 mph (40.69 km/h)
30 mph (48.28 km/h)30.34 mph (48.83 km/h)
35 mph (56.33 km/h)35.4 mph (56.97 km/h)
40 mph (64.37 km/h)40.45 mph (65.1 km/h)
45 mph (72.42 km/h)45.51 mph (73.24 km/h)
50 mph (80.47 km/h)50.57 mph (81.38 km/h)
55 mph (88.51 km/h)55.62 mph (89.52 km/h)
60 mph (96.56 km/h)60.68 mph (97.66 km/h)
65 mph (104.61 km/h)65.74 mph (105.79 km/h)
70 mph (112.65 km/h)70.79 mph (113.93 km/h)
75 mph (120.7 km/h)75.85 mph (122.07 km/h)
80 mph (128.75 km/h)80.91 mph (130.21 km/h)
85 mph (136.79 km/h)85.96 mph (138.34 km/h)
90 mph (144.84 km/h)91.02 mph (146.48 km/h)
95 mph (152.89 km/h)96.08 mph (154.62 km/h)
100 mph (160.93 km/h)101.13 mph (162.76 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
15381786192420092100216622382323244125582689279429843193335734613520373640374692
Better Fuel Economy Factory Ratios Increased Power

Most Popular 245/70-R19.5 Comparisons

To Top