Paint Calculator (Room)
Calculate paint needed for room walls. Includes wall area, doors/windows deduction, coats, wastage.
Paint Required
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What is a Paint Calculator?
Calculates litres of paint needed to paint a room based on wall area, ceiling height, doors, windows, and number of coats. Accounts for paint coverage (sq ft per litre) and 5-10% wastage. Useful for: home renovation budgeting, hiring painter (verify quote), DIY painting planning.
How to use
- Enter room dimensions — L × W × H in feet
- Subtract openings — Doors (~21 sq ft each), windows (~15 sq ft)
- Number of coats — 2 standard for full coverage
- Coverage per litre — Check paint can label (110-140 typical)
Tips
- Always 2 coats for uniform color
- Primer required for fresh walls (separate calculation)
- Dark colors may need 3 coats for solid coverage
- Buy 5-10% extra — same batch matches better than future repurchase
- Royal/Asian Paints/Berger emulsion: 110-140 sq ft per litre per coat
FAQs
How many litres per room?
Standard 10×12 ft room with 10ft ceiling, 1 door, 2 windows, 2 coats — about 7-10 litres.
Cost of paint?
Emulsion: ₹300-600/litre for premium brands. Distemper: ₹150-300/litre. Royal Aspira: ₹700+/litre.
Primer needed for fresh wall?
Yes — bare cement walls need primer for paint adhesion. POP/putty surfaces also need primer.
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