Calculating paint quantities

When working out how much paint you’ll need, you are aiming for the “Goldilocks” amount. Not too much, not too little, but just right. Our online calculator eliminates the guess work.

Paint quantity calculator

Use our handy calculator below to estimate how many litres of paint you will need for your project. Our calculator works out how much you will need for one coat.

No room is the same, so working out paint quantities per wall seems to make more sense. Enter the width and height of your wall to get the total area and our calculator will suggest the quantity you’ll need for one coat. We recommend two coats so simply double this and then repeat for each wall, not forgetting to add them up at the end before placing your order.

This does not take into account windows or doors.

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Our paint comes in 1L, 2.5L and 5L tins for most finishes except for Exterior Masonry, which is only available in 5L tins and Full Gloss that comes in 1L and 2.5L tins.

Don’t forget to add our high quality primer to your order.