Material Prices
Paint Calculator
Use this paint calculator to estimate paint for room walls or perimeter-based layouts. It subtracts door and window openings and accounts for multiple coats.
Frequently Asked Questions
Do I need primer?
Primer is useful on fresh plaster, patched walls, or porous surfaces.
How does coverage affect litres?
Lower coverage means the wall absorbs more paint, so you need more litres per coat.
Can I enter a container price?
Yes. You can plan cost by litre or by container size depending on the supplier quote.
Is this for exterior paint too?
Yes, but exterior coatings may have different coverage and primer requirements.
Related Calculators
Results are approximate estimates based on the measurements, rates and assumptions entered. Actual quantities and costs may vary because of design, structural requirements, material quality, wastage, labour, supplier prices and site conditions. Consult a qualified architect, engineer, quantity surveyor or contractor before purchasing materials or beginning construction.