Tire size
285/55 R16
Full dimensions and a live comparison calculator for the 285/55 R16 tire size.
Overall diameter
719.9 mm
28.34″
Sidewall height
156.8 mm
Circumference
2.262 m
Revs / km
442.2
Section width
285 mm
Aspect ratio
55%
Rim diameter
16″
406.4 mm
Radius
359.9 mm
What does 285/55 R16 mean?
The 285 is the section width in millimetres, measured sidewall to sidewall. The 55 is the aspect ratio — sidewall height as a percentage of width, so the sidewall here is 156.8 mm. The R16 means a radial-construction tire designed for a 16-inch wheel rim. Together these give an overall diameter of 720 mm.
Compare 285/55 R16 with another size
Current Tire
New Tire
Fitment · Scaled comparison
● Not recommended
Diameter
-85.6 mm
-11.89%
Sidewall
-55.5 mm
Speedometer
88.1 km/h
at true 100
Clearance
Not recommended
Ground line · Scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-85.6 mm
-11.89%
Speedometer at 100
88.1 km/h
-11.89% error
Ground clearance
-42.8 mm
ride height delta
Sidewall change
-55.5 mm
revs/km: 501.8
Permalink for this comparison:
/compare/285-55-r16-vs-225-45-r17Common alternatives to 285/55 R16
These sizes are within a few percent overall diameter — usually safe on the same vehicle from a speedometer-error standpoint.
Common plus-size upgrades
+1 and +2 inch fitments within OEM tolerance — diameter delta and verdict for each upgrade.
285/55 R16 → 235/55 R18
+2 inch — OEM-safe diameter match
-0.58% diameter
285/55 R16 → 225/65 R17
+1 inch — OEM-safe diameter match
+0.61% diameter
285/55 R16 → 225/55 R18
+2 inch — common sport upgrade
-2.11% diameter
285/55 R16 → 235/65 R17
+1 inch — common sport upgrade
+2.42% diameter
285/55 R16 → 255/55 R18
+2 inch — common sport upgrade
+2.47% diameter
285/55 R16 → 225/60 R17
+1 inch — verify speedometer drift
-2.51% diameter
Drivers also searched
Semantically close sizes — same width, nearby aspect, or matching rim families.
Related topics
Plus-size upgrades from 285/55 R16
Fitment safety note
Overall diameter, speedometer error and circumference are only part of the picture. Physical clearance, wheel offset (ET), hub bore, suspension geometry, load index and your manufacturer's recommendation all decide whether a size is truly safe on your car. Always cross-check with the vehicle manual or a qualified fitter before changing tire size.