Paint Calculator for Walls, Rooms & Ceilings
Estimate paint quantity instantly for walls, ceilings, rooms, homes, and renovation projects.
Paint Calculation Formula
Paint quantity depends on wall area and the number of paint coats applied.
Paint Required = (Length × Height ÷ 100) × Number of Coats
How to Use This Paint Calculator
1. Select your preferred measurement unit.
2. Enter wall length.
3. Enter wall height.
4. Enter the number of paint coats required.
5. Click Calculate Paint to get instant results.
Common Paint Estimation Examples
• 10 ft × 10 ft wall = 100 sq ft
• 12 ft × 15 ft wall = 180 sq ft
• Two coats on 200 sq ft wall ≈ 4 liters paint
• Three coats on 300 sq ft wall ≈ 9 liters paint
Why Use This Paint Calculator?
This calculator helps homeowners, contractors, painters, and builders estimate paint quantity accurately before purchasing materials.
Proper paint estimation reduces waste, controls project costs, and helps improve planning.
Frequently Asked Questions
How much paint do I need for a room?
Paint requirements depend on wall area, paint coverage, and the number of coats.
Can I calculate ceiling paint?
Yes. This calculator can be used for walls, ceilings, and interior painting projects.
Is this calculator free?
Yes. All calculators on CalHub are free to use.