285/30 R18 Tyres

Buy 285/30 R18 Tyres

No tyres available at the moment. Please check again later.

285/30 R18 Width, Profile and Rim

285/30 R18 tyres are low profile rear tyres for staggered setups on vehicles like the Porsche 911 Turbo (993). 285 indicates the tyre width in mm. 30 indicates the sidewall height as a percent of the width in mm (86mm). R18 indicates a tyre with radial construction on an 18-inch rim, giving an overall diameter of 628mm. This low sidewall gives an overall firmness of the tyre with less cushioning on rough roads. We sell 285/30 R18 tyres at Tyres.co.uk.

Part of the sizeValueWhat it means
Section width 285 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 30 Sidewall height as a percentage of the width - here, 30% of 285 mm (about 86 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 18 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 85.5 mm (3.37 in)
Overall diameter 628 mm (24.7 in)
Circumference 1,974 mm (77.7 in)
Revolutions 815 per mile · 507 per km
Equivalent sizes
SizeOverall diameter
295/30 R18 634 mm · +1.0%
265/30 R19 642 mm · +2.1%
265/35 R18 643 mm · +2.3%

Our Tyre Tools

View All ToolsArrow Right Icon
Tyre Size Calculator
Tyre Size Calculator Image
Tyre Size Comparison
Tyre Size Comparison Image
Tyre Age Calculator
Tyre Age Calculator Image