Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/55r19 vs 265/50r19 Tire Comparison Side By Side
  255/55-19 265/50-19 Difference
Diameter inches (mm) 30.04 (763.1) 29.43 (747.6) -0.61 (-15.5) -2%
Width inches (mm) 10.04 (255) 10.43 (265) 0.39 (10) 3.9%
Circum. inches (mm) 94.38 (2397.35) 92.47 (2348.65) -1.92 (-48.69) -2%
Sidewall Height inches (mm) 5.52 (140.25) 5.22 (132.5) -0.31 (-7.75) -5.5%
Revolutions per mile (km) 671.3 (417.13) 685.22 (425.77) 13.92 (8.65) 2.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.59 mph (31.53 km/h)
25 mph (40.23 km/h)24.49 mph (39.42 km/h)
30 mph (48.28 km/h)29.39 mph (47.3 km/h)
35 mph (56.33 km/h)34.29 mph (55.18 km/h)
40 mph (64.37 km/h)39.19 mph (63.07 km/h)
45 mph (72.42 km/h)44.09 mph (70.95 km/h)
50 mph (80.47 km/h)48.98 mph (78.83 km/h)
55 mph (88.51 km/h)53.88 mph (86.72 km/h)
60 mph (96.56 km/h)58.78 mph (94.6 km/h)
65 mph (104.61 km/h)63.68 mph (102.48 km/h)
70 mph (112.65 km/h)68.58 mph (110.37 km/h)
75 mph (120.7 km/h)73.48 mph (118.25 km/h)
80 mph (128.75 km/h)78.38 mph (126.13 km/h)
85 mph (136.79 km/h)83.27 mph (134.02 km/h)
90 mph (144.84 km/h)88.17 mph (141.9 km/h)
95 mph (152.89 km/h)93.07 mph (149.78 km/h)
100 mph (160.93 km/h)97.97 mph (157.67 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
17442026218222782382245625382634276829013050316833843621380739253992423745785320
Better Fuel Economy Factory Ratios Increased Power

Most Popular 255/55-R19 Comparisons

To Top