Not ordering enough paint for your decorating project can be very frustrating, but over ordering will mean you're left with items you don't need. You can minimize the chances of this happening by using our convenient paint calculator. While our advice is for guidance only, we would strongly recommend that you always check with your decorator before ordering or email customerservices@farrow-ball.com for further advice or assistance. Please note that we do not take doors, windows and alcoves into consideration when making our calculations.

Please also take into account the nature of the surface which you are painting beforehand. Porous walls are likely to require extra coats and vast colour transformations (i.e. white to black or black to white) are also likely to require a third coat. You can minimize the chance of this by using the correct undercoat.

The table below offers a guide to the maximum coverage for all our paint finishes. Coverage is dependent on thickness of application and surface. All product pages contain an interactive paint calculator to help you choose the right amount - please note this calculator is only suitable for calculating paint for walls only.


Paint type Size available Approximate coverage Typical no. of coats Drying time
Estate Emulsion 100ml, US Gallon Up to 570ft2 per US Gallon 2 Dry in 2 hours / recoat 4 hours
Modern Emulsion US Gallon Up to 480ft2 per US Gallon 2 Dry in 2 hours / recoat 4 hours
Estate Eggshell 750ml, US Gallon Up to 480ft2 per US Gallon, up to 95ft2 per 750 ml  2 Dry in 2 hours / recoat 4 hours
Modern Eggshell 750ml, US Gallon Up to 480ft2 per US Gallon, up to 95ft2 per 750 ml   2* Dry in 2 hours / recoat 4 hours
Full Gloss 750ml, US Gallon Up to 480ft2 per US Gallon, up to 95ft2 per 750 ml   2 Dry in 2 hours / recoat 4 hours
Dead Flat 750ml, US Gallon Up to 480ft2 per US Gallon, up to 95ft2 per 750 ml  2 Dry in 2 hours / recoat 4 hours
Exterior Masonry US Gallon Up to 325ft2 per US Gallon depending on the surface being painted 2 Dry in 2 hours / recoat 4 hours
Exterior Eggshell 750ml, US Gallon Up to 529ft2 per US Gallon, up to 105ft2 per 750 ml 2 Dry in 2 hours / recoat 4 hours


*A 3rd coat may be needed depending on the surface & top coat colours.

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