275/45R19 Tire Size Specifications & Compatible Vehicles
Overall Diameter
730.1 mm
Section Width
275 mm
Sidewall Height
123.8 mm
Circumference
2293.7 mm
Revs/Mile
702
Rim Diameter
19"
Inch Equivalent
28.7x10.8R19
Rim Width (ETRTO)
8.5" – 11.0"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 275/45R19 and may be used as replacements:
Understanding 275/45R19
The tire size 275/45R19 means the tire has a section width of 275mm, an aspect ratio of 45% (the sidewall height is 45% of the width), and fits a 19-inch rim.
Sidewall Height = 275 x 0.45 = 123.8 mm
Overall Diameter = (123.8 x 2) + (19 x 25.4) = 730.1 mm
Circumference = 730.1 x π = 2293.7 mm
Overall Diameter = (123.8 x 2) + (19 x 25.4) = 730.1 mm
Circumference = 730.1 x π = 2293.7 mm
Frequently Asked Questions
The 275/45R19 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 275/45R19 tire has an overall diameter of 730.1mm (28.7 inches). The sidewall height is 123.8mm, and the total circumference is 2294mm.
For 275/45R19 tires, the ETRTO recommended rim width is 9.5". The acceptable range is 8.5" minimum to 11.0" 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 275/45R19 730.1mm diameter. Compatible alternatives include 165/75R19, 225/55R19, 195/70R18. Use our Tire Size Calculator to compare any two sizes.