Steering feel
Softer, more relaxed turn-in
More sidewall flex before grip arrives — comfort-tuned, calm at speed.
Tire size meaning
285/60 R18
What the numbers on a 285/60 R18 tire actually mean — width, sidewall, construction and rim — explained in plain language with real-world driving context.
Direct answer
What does 285/60 R18 mean?
285/60 R18 is a metric tire size: 285 mm wide, a sidewall 60% of that width (171 mm), radial construction, fitted to a 18-inch wheel. Overall diameter ≈ 799 mm.
- 285
- Section width in mm (sidewall to sidewall).
- 60
- Aspect ratio — sidewall is 60% of width (171 mm).
- R
- Radial construction — the modern layered build.
- 18
- Wheel rim diameter in inches (457 mm).
Ø 799 mm · 31.46″ · 398 revs/km
Dimensional breakdown
- Section width
- 285 mm
- Aspect ratio
- 60%
- Sidewall height
- 171.0 mm
- Rim diameter
- 18″ (457.2 mm)
- Overall diameter
- 799 mm
- Circumference
- 2.511 m
- Revs per km
- 398
- Construction
- Radial (R)
What 285/60 R18 feels like on the road
A 285/60 R18 tire is a tall-sidewall comfort or off-road profile. With a sidewall of 171 mm, it absorbs bumps and rough surfaces well, ideal for comfort cruisers, SUVs and light off-road use.
The 285 mm contact width delivers maximum contact patch for high-performance and SUV applications. Combined with a 18-inch wheel, this size is most commonly found on mid-size sedans, sport trims and modern crossovers.
At highway speed each tire completes about 398 revolutions per kilometre — the figure your speedometer and ABS were calibrated against if 285/60 R18 is the OEM specification.
Common alternatives to 285/60 R18
Sizes within ±3% overall diameter — generally safe swaps for speedometer accuracy and clearance. Click any size to open a full side-by-side comparison.
Driver feel · telemetry
What 285/60 R18 usually feels like
A driver-perspective read on this size — steering, comfort, highway stability and rough-road behavior.
Ride comfort
Softer over potholes
Tall sidewall absorbs expansion joints and broken tarmac — great for long drives.
Highway stability
Planted at highway speed
Wider contact patch resists crosswinds and tramlining — strong straight-line confidence.
Pothole comfort
Forgiving over impacts
Sidewall cushions the rim from sharp edges — ideal for poor roads.
Sporty vs OEM tone
Comfort-leaning OEM setup
Tuned for ride quality and economy over outright bite.
Sidewall171 mm
Ø799 mm
Width285 mm
Revs/km398
Related tire sizes for 285/60 R18
Explore neighbouring sizes by intent — similar, wider, lower-profile, OEM-safe, or aggressive. Each link opens a full side-by-side comparison.