185/55R15 Tire Size Specifications & Compatible Vehicles
Overall Diameter
584.5 mm
Section Width
185 mm
Sidewall Height
101.8 mm
Circumference
1836.3 mm
Revs/Mile
876
Rim Diameter
15"
Inch Equivalent
23x7.3R15
Rim Width (ETRTO)
5.0" – 7.0"
Compatible Vehicles
The following vehicles use 185/55R15 tires from the factory:
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 185/55R15 and may be used as replacements:
Understanding 185/55R15
The tire size 185/55R15 means the tire has a section width of 185mm, an aspect ratio of 55% (the sidewall height is 55% of the width), and fits a 15-inch rim.
Sidewall Height = 185 x 0.55 = 101.8 mm
Overall Diameter = (101.8 x 2) + (15 x 25.4) = 584.5 mm
Circumference = 584.5 x π = 1836.3 mm
Overall Diameter = (101.8 x 2) + (15 x 25.4) = 584.5 mm
Circumference = 584.5 x π = 1836.3 mm
Frequently Asked Questions
The 185/55R15 tire size is used on 6 vehicle trims including the 2025 Mitsubishi Mirage, 2024 Mitsubishi Mirage, 2023 Mitsubishi Mirage and 3 more.
A 185/55R15 tire has an overall diameter of 584.5mm (23.0 inches). The sidewall height is 101.8mm, and the total circumference is 1836mm.
For 185/55R15 tires, the ETRTO recommended rim width is 6.0". The acceptable range is 5.0" minimum to 7.0" 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 185/55R15 584.5mm diameter. Compatible alternatives include 305/25R17, 255/30R17, 255/35R16. Use our Tire Size Calculator to compare any two sizes.