245/45R19 Tire Size Specifications & Compatible Vehicles
Overall Diameter
703.1 mm
Section Width
245 mm
Sidewall Height
110.3 mm
Circumference
2208.9 mm
Revs/Mile
729
Rim Diameter
19"
Inch Equivalent
27.7x9.6R19
Rim Width (ETRTO)
7.0" – 9.0"
Compatible Vehicles
The following vehicles use 245/45R19 tires from the factory:
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 245/45R19 and may be used as replacements:
Popular Comparisons
See how 245/45R19 compares to other common tire sizes:
Understanding 245/45R19
The tire size 245/45R19 means the tire has a section width of 245mm, an aspect ratio of 45% (the sidewall height is 45% of the width), and fits a 19-inch rim.
Sidewall Height = 245 x 0.45 = 110.3 mm
Overall Diameter = (110.3 x 2) + (19 x 25.4) = 703.1 mm
Circumference = 703.1 x π = 2208.9 mm
Overall Diameter = (110.3 x 2) + (19 x 25.4) = 703.1 mm
Circumference = 703.1 x π = 2208.9 mm
Frequently Asked Questions
The 245/45R19 tire size is used on 7 vehicle trims including the 2025 Audi A6, 2024 Audi A6, 2021 Audi A6 and 4 more.
A 245/45R19 tire has an overall diameter of 703.1mm (27.7 inches). The sidewall height is 110.3mm, and the total circumference is 2209mm.
For 245/45R19 tires, the ETRTO recommended rim width is 8.0". The acceptable range is 7.0" minimum to 9.0" maximum. Using a rim outside this range can cause improper bead seating and unsafe handling.
Yes, as long as the replacement tire overall diameter is within 3% of the 245/45R19 703.1mm diameter. Compatible alternatives include 315/35R19, 205/60R18, 195/50R20. Use our Tire Size Calculator to compare any two sizes.