Paint quantity

MEASURE FIRST

How to prepare your inputs

Measure the surfaces being painted, deduct excluded openings and enter the paint’s coverage for that surface and coat system.

How this calculation works

Litres = (surface area − openings) × coats ÷ coverage × (1 + waste / 100).

Assumptions & exclusions

Coverage is product and surface dependent. Enter the manufacturer’s coverage. Excludes primer, tools and labour. Round up to available container sizes.

Your next step

Confirm preparation, primers, number of coats and available tin sizes with your painter or supplier.

Further reading

• Bunnings Trade planning resources

These resources provide background information. Confirm current product specifications and project requirements with your supplier or trade professional.

What if my shape or product is different?

Use dimensions and product data that match the stated method. For complex work, calculate separate sections or obtain a project-specific take-off. Do not apply simple geometry to structural or compliance decisions.

Why are quantities rounded up?

Whole bags, packs, sheets or cartridges round up to purchasable units. Decimal area or volume results are planning figures; confirm order increments with the supplier.

Are my entries saved?

No. Entries remain in the current browser page and clear on reload. Printing can save your results and inputs as a PDF on your device.