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Paint Formula:
The Paint Calculator helps determine the amount of paint needed for a painting project based on the area to be painted, the coverage rate of the paint, and the number of coats required.
The calculator uses the paint formula:
Where:
Explanation: The formula calculates the total paint volume needed by dividing the area by the coverage rate and multiplying by the number of coats.
Details: Accurate paint calculation helps avoid wastage, ensures you purchase the right amount of paint, and helps with budget planning for painting projects.
Tips: Measure the total area accurately, check the paint can for coverage rate specifications, and consider the surface type when determining the number of coats needed.
Q1: How do I measure the area accurately?
A: Measure length and height of walls, calculate area (length × height), and subtract areas of windows and doors.
Q2: What is a typical coverage rate for paint?
A: Most paints cover 10-12 m² per litre, but this varies by paint type and surface. Always check the manufacturer's specifications.
Q3: How many coats are usually needed?
A: Most projects require 2 coats for good coverage. Dark colors over light may need 3 coats, while primer+2 coats is standard for new surfaces.
Q4: Should I buy extra paint?
A: It's recommended to buy 10-15% extra for touch-ups and wastage, especially for complex surfaces.
Q5: Does surface texture affect coverage?
A: Yes, rough or porous surfaces require more paint than smooth surfaces. Textured walls may need 20-30% more paint.