Paint calculator

Work out exactly how much paint to buy for one or several rooms, and which cans to pick so you spend the least.

Ladders, solvent vapours and old paint can hurt you. Read the safety section before you start.

Project name

Building from before 2001 In Belgium, asbestos was fully banned only from 2002. Test old coatings before you sand or scrape.

Rooms

Paint and coverage

Paint type Coverage per coat

m²/L

Paint base

I'll strip old paint with a chemical stripper

Safety margin

%

Choose cans for

The margin covers roller absorption, spills and touch-ups.

Add primer where the surface needs it Primer coverage

m²/L

Can sizes and prices

Match these to your store. Remove sizes it doesn't sell.

Currency symbol

Paint

Size	Price

Primer

Size	Price

Safety

Protective equipment

Risks of this work

This list is a reminder, not a complete safety assessment.

Save your plan

Support this tool

☕ Support on Ko-fi

How it works

Assumptions and sources

Questions

How much paint do I need for a room?

How many coats of paint do I need?

Do I need a primer?

What does paint coverage mean?

Why does it suggest a bigger can than I need?

Is it safe to sand or strip old paint?