Free Tools
Wall Paint Requirement Calculator
Calculate how many liters and cans of paint you need from wall area, coats, and coverage. Free and adjustable.
Advanced settings▾
Coverage varies by brand; check the can label and adjust.
Prices (optional)
Important — this is an estimate
Estimate based on standard coefficients; real needs depend on specification, work method, and field conditions. For an accurate BoQ, consult Luxury Art.
Coefficients reference SNI AHSP (typical values, adjustable).
Paint requirement
Needs can be higher for rough/porous surfaces or when covering dark over light colors.
Need a full BoQ for your project?
Leave your contact and the Luxury Art team will help build a clean material & labor BoQ. Free initial consultation.
How to calculate paint needs
Coverage × number of coats
Paint needed = area × coats ÷ coverage. Coverage is printed on the can (usually 10-12 m²/liter per coat), and nearly every job needs at least 2 coats for even results.
Surface drives consumption
New porous walls or rough surfaces 'drink' more paint. Covering dark over light also needs extra coats. Bump the estimate up a little for these conditions.
Buy by the can, not the liter
Paint is sold per can (typically 2.5 L and 25 L). This calculator converts your liter need into a number of cans, so you know exactly how much to buy without running short or badly over-buying.
FAQ
Frequently asked questions
How much area can one liter of paint cover?
Typical wall paint coverage is around 10-12 m² per liter for ONE coat. Since you usually need 2 coats, one liter effectively covers about 5-6 m². The exact figure is on the can label and adjustable under Advanced Settings.
How many liters of paint for a 40 m² wall?
With 2 coats and 10 m²/liter/coat coverage, a 40 m² wall needs about 8 liters. That's roughly 4 cans of 2.5 L or under 1 can of 25 L. The calculator works this out automatically once you enter the area.
Why 2 coats, isn't 1 enough?
One coat usually won't cover the base evenly, especially on new walls or when changing color. Two coats give a solid, durable color. You can set the number of coats as needed.
Are ceiling and frame paint included?
No. This calculator focuses on wall paint by wall area. Ceiling, frame, or specialty paints (wood/metal) have different coverage — calculate them separately by entering their own area and coverage.
How do I estimate the paint cost?
Enter the paint price per liter in the price field and the calculator multiplies it by your liter need. For a full BoQ including painter labor and support materials (filler, primer), the Luxury Art team can help.
Construction
Other calculators you might need
All free, no signup, and every calculation runs on your own device.
Luxury Art — Architecture, Interior & Construction
You have the estimate. Now build it right.
The calculator here gives you a starting number. Building or renovating with a genuinely polished result takes the right team — that's where Luxury Art works. We handle architecture design, interior design, professional cost planning (RAB), and design-build and construction management.
Architecture Design
Floor plans, elevations, and working drawings finalized before a single brick — saving the cost of building wrong.
Interior Design
Space, material, and lighting concepts so your home feels premium and comfortable to live in.
Professional BoQ (RAB)
A detailed, realistic budget plan — a clear basis for keeping your project's cost under control.
Design-Build & Construction Management
Construction and supervision by an experienced team, on time and to specification.
The initial consultation is free with no obligation. We help map out your design, budget, and build needs.