225/55R16 Tire Size Specifications & Compatible Vehicles
Overall Diameter
653.9 mm
Section Width
225 mm
Sidewall Height
123.8 mm
Circumference
2054.3 mm
Revs/Mile
783
Rim Diameter
16"
Inch Equivalent
25.7x8.9R16
Rim Width (ETRTO)
6.5" – 8.5"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 225/55R16 and may be used as replacements:
Understanding 225/55R16
The tire size 225/55R16 means the tire has a section width of 225mm, an aspect ratio of 55% (the sidewall height is 55% of the width), and fits a 16-inch rim.
Sidewall Height = 225 x 0.55 = 123.8 mm
Overall Diameter = (123.8 x 2) + (16 x 25.4) = 653.9 mm
Circumference = 653.9 x π = 2054.3 mm
Overall Diameter = (123.8 x 2) + (16 x 25.4) = 653.9 mm
Circumference = 653.9 x π = 2054.3 mm
Frequently Asked Questions
The 225/55R16 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 225/55R16 tire has an overall diameter of 653.9mm (25.7 inches). The sidewall height is 123.8mm, and the total circumference is 2054mm.
For 225/55R16 tires, the ETRTO recommended rim width is 7.5". The acceptable range is 6.5" minimum to 8.5" 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 225/55R16 653.9mm diameter. Compatible alternatives include 165/75R16, 275/45R16, 195/70R15. Use our Tire Size Calculator to compare any two sizes.