How Much Paint for a Small Bedroom (3m x 4m)?
Calculate the litres of paint needed for a standard small bedroom measuring 3m x 4m with 2.5m ceilings and 2 coats.
How to use this tool
- Enter room width, room length, wall height, number of coats and paint coverage in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your paint needed and the full breakdown beneath it.
Find out exactly how many litres of paint to buy for a small 3m x 4m bedroom with two coats and standard 2.5m ceiling height.
Frequently asked questions
- How much paint do I need for a room?
- Calculate the perimeter × wall height = wall area in m², multiply by the number of coats, then divide by the paint coverage (typically 10 m²/L).