Welcome to Rota Wheels UK - the home of Rota Wheels in Europe

Tyre Size Calculator

Enter your existing wheel and tyre specification in 'Existing Setup' then enter the specification of your potentially new wheels and tyres to see what a difference it will make!

This tool is great for working out if your new wheels will give you more or less clearance to your suspension and wheel arches. If you have any questions or need help using it please do get in touch and we'll be happy to help you with it.

Existing setup

New setup

Tyre diagram

The image to the left shows your 'Existing' wheel and tyre (grey + black) with the 'New Setup' (green + black) overlaid.

This is a graphical representation of how your chosen change in wheel and tyre will affect your stance, poke and clearance.

To see the wheel to tyre ratio changes, and the Existing vs New tyres in profile select 'Tyre Image'.

For the measurements, take a look in the 'Data Table' tab.

Tyre image
Data table
ExistingNew
Tyre Diameter631.9mm625.3mm
Tyre Circumference1985.2mm1964.4mm
Additional PokeN/A
Inboard ClearanceN/A
Gearing ChangeN/A1.01%
Speedo at 30mph30mph
Speedo at 60mph60mph
Ride Height ChangeN/A
Arch Gap ChangeN/A

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9 Item(s)

  1. GKR 18x9.5 5x100 ET38 Steelgrey
    Excl. VAT: £229.17 Incl. VAT: £275.00
    GKR,18,9.5,5100,ET38,Steelgrey Learn More
  2. GKR 18x9.5 5x112 ET40 Steelgrey
    Excl. VAT: £229.17 Incl. VAT: £275.00
    GKR,18,9.5,5112,ET40,Steelgrey Learn More
  3. Grid 18x9.5 5x114 ET30 Steel Grey
    Excl. VAT: £229.17 Incl. VAT: £275.00
    Grid,18,9.5,5114,ET30,Steel Grey Learn More
  4. Grid 19x9.5 5x114 ET20 Steelgrey
    Excl. VAT: £245.83 Incl. VAT: £295.00
    Grid,19,9.5,5114,ET20,Steelgrey Learn More
  5. Grid 19x9.5 5x114 ET38 Steelgrey
    Excl. VAT: £245.83 Incl. VAT: £295.00
    Grid,19,9.5,5114,ET38,Steelgrey Learn More
  6. Grid 19x9.5 5x120 ET45 Steelgrey
    Excl. VAT: £245.83 Incl. VAT: £295.00
    Grid,19,9.5,5120,ET45,Steelgrey Learn More
  7. ProR 18x9.5 5x100 ET38 Matte Bronze 2
    Excl. VAT: £229.17 Incl. VAT: £275.00
    A hugely popular wheel for the following vehicles: Audi A3 (Spacers may be needed) Skoda Octavia (Spacers may be needed) Subaru BRZ Subaru Impreza Toyota GT86 VW Golf MKIV (Spacers may be needed) Learn More
  8. PWR 19x9.5 5x114 ET20 Steelgrey

    Regular Price: £295.00

    Special Price Excl. VAT: £221.25 Incl. VAT: £265.50

    PWR,19,9.5,5114,ET20,Steelgrey Learn More
  9. RKR 17x9.5 5x114 ET-10 Steelgrey
    Excl. VAT: £175.00 Incl. VAT: £210.00
    RKR,17,9.5,5114,ET-10,Steelgrey Learn More

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9 Item(s)