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Paint Formula:
The Paint Square Meter Calculator estimates the amount of paint required for a painting project based on the surface area, paint coverage rate, and number of coats needed. It helps avoid over-purchasing or under-purchasing paint.
The calculator uses the paint formula:
Where:
Explanation: The formula calculates the total paint volume needed by dividing the surface area by the coverage rate and multiplying by the number of coats.
Details: Accurate paint calculation ensures you purchase the right amount of paint, reduces waste, saves money, and ensures consistent color throughout the project.
Tips: Measure the total surface area accurately, check the paint can for coverage rate specifications, and consider the surface type and color when determining the number of coats needed.
Q1: How do I measure surface area accurately?
A: Measure length and height of each wall/ceiling, calculate area for each surface, and sum them up. Subtract areas for windows and doors.
Q2: What is a typical paint coverage rate?
A: Most paints cover 10-12 m² per litre, but this varies by paint type, surface texture, and application method. Always check the product 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 common for new surfaces.
Q4: Should I buy extra paint for touch-ups?
A: Yes, it's recommended to purchase 10-15% extra paint for touch-ups and future repairs.
Q5: Does surface texture affect paint consumption?
A: Yes, rough or textured surfaces can require 20-50% more paint than smooth surfaces due to increased surface area.