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First release of PaintCalc Work out in 30 seconds how much paint and how many cans to buy, openings deducted. Custom exclusion zones, budget estimate, local history. 100% free, offline, no account.
Work out how many litres of paint and how many cans to buy, in 30 seconds.
How many litres of paint for your room? How many cans should you buy? PaintCalc gives you the exact answer in 30 seconds — so you never run out halfway up a wall, or pay for an extra can that dries out in the garage. Enter your room dimensions, the project type (walls & ceilings, trim, facade), your paint's coverage and the number of coats: PaintCalc works out the net surface (openings deducted), the litres you need and the most cost-effective combination of cans, with a budget estimate. WHAT PAINTCALC CALCULATES • The surface to paint, with openings (doors, windows) deducted • The litres of paint needed, based on your product's real coverage • The number and size of cans to buy, at the best price • A budget range from entry level to premium BUILT FOR REAL JOBS • Custom exclusion zones, named and saved (bay window, cupboard…) • Tailored to each type: walls & ceilings, trim & doors, exterior facade • Adjustable coverage (m²/L) and number of coats • Professional formula: net surface = gross surface − openings SIMPLE, NO STRINGS • 100% free • Works offline, no connection required • No account, no personal data collected • Keep a history of your projects, stored locally on your phone Also available on the web at construcalc.app. PaintCalc is part of the BTP Series, with TileCalc (tiles) and ConcreteCalc (concrete): all your job-site take-offs in one place.