Paint Calculation Formula:
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The Sandtex Paint Calculator estimates the amount of paint needed based on the area to be painted and the coverage rate of the paint. It helps prevent over- or under-purchasing of paint.
The calculator uses the paint calculation formula:
Where:
Explanation: The equation calculates the volume of paint needed by dividing the total area by the paint's coverage rate.
Details: Accurate paint estimation saves money by preventing over-purchasing and ensures you have enough paint to complete your project without interruption.
Tips: Measure your surface area accurately in square meters. The default coverage rate is 16 m²/litre (standard for Sandtex paint) but can be adjusted for other paints.
Q1: How do I calculate wall area?
A: Multiply wall height by width for each wall, then sum all areas. Subtract areas of windows and doors.
Q2: Does coverage rate vary by paint type?
A: Yes, coverage depends on paint quality, surface texture, and application method. Always check manufacturer specifications.
Q3: Should I buy extra paint?
A: It's recommended to buy 10-20% extra to account for touch-ups, application variations, and future repairs.
Q4: How many coats should I plan for?
A: Most projects require 2 coats. Multiply your final paint volume by 2 if doing multiple coats.
Q5: Does this work for ceilings and trim?
A: Yes, but calculate these areas separately as they may require different paint types or application methods.