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Paint Formula:
The Paint Calculator estimates 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. It helps avoid buying too much or too little paint.
The calculator uses the paint formula:
Where:
Explanation: The formula calculates the base amount of paint needed for one coat (area divided by coverage rate) and then multiplies by the number of coats required.
Details: Accurate paint calculation helps with budget planning, reduces waste, ensures consistent color matching, and prevents project delays due to insufficient materials.
Tips: Measure the total area accurately, check the paint can for coverage rate information, and consider the surface type and color when determining the number of coats needed.
Q1: How do I measure the area accurately?
A: Measure length and height of each wall, multiply to get area, and subtract areas for windows and doors. Add all wall areas together.
Q2: What is a typical coverage rate for paint?
A: Most paints cover 10-12 square metres per litre, but this varies by paint type, surface texture, and application method.
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 light colors over similar shades may only need 1.
Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to buy 10-15% extra for touch-ups and future repairs, especially for custom colors.
Q5: Does surface texture affect coverage?
A: Yes, rough or textured surfaces require more paint than smooth surfaces. Porous surfaces may also need a primer coat first.