Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
225/45r19 vs 225/55r17 Tire Comparison Side By Side
  225/45-19 225/55-17 Difference
Diameter inches (mm) 26.97 (685.1) 26.74 (679.3) -0.23 (-5.8) -0.8%
Width inches (mm) 8.86 (225) 8.86 (225) 0 (0) 0%
Circum. inches (mm) 84.74 (2152.31) 84.02 (2134.08) -0.72 (-18.22) -0.8%
Sidewall Height inches (mm) 3.99 (101.25) 4.87 (123.75) 0.89 (22.5) 22.2%
Revolutions per mile (km) 747.73 (464.62) 754.11 (468.58) 6.38 (3.97) 0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.83 mph (31.91 km/h)
25 mph (40.23 km/h)24.79 mph (39.89 km/h)
30 mph (48.28 km/h)29.75 mph (47.87 km/h)
35 mph (56.33 km/h)34.7 mph (55.85 km/h)
40 mph (64.37 km/h)39.66 mph (63.83 km/h)
45 mph (72.42 km/h)44.62 mph (71.81 km/h)
50 mph (80.47 km/h)49.58 mph (79.79 km/h)
55 mph (88.51 km/h)54.53 mph (87.76 km/h)
60 mph (96.56 km/h)59.49 mph (95.74 km/h)
65 mph (104.61 km/h)64.45 mph (103.72 km/h)
70 mph (112.65 km/h)69.41 mph (111.7 km/h)
75 mph (120.7 km/h)74.37 mph (119.68 km/h)
80 mph (128.75 km/h)79.32 mph (127.66 km/h)
85 mph (136.79 km/h)84.28 mph (135.64 km/h)
90 mph (144.84 km/h)89.24 mph (143.62 km/h)
95 mph (152.89 km/h)94.2 mph (151.59 km/h)
100 mph (160.93 km/h)99.15 mph (159.57 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
19192229240125072621270327932899304631933356348737243985418943204393466350395855
Better Fuel Economy Factory Ratios Increased Power

Most Popular 225/45-R19 Comparisons

To Top