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Crown Paint Formula:
The Crown Paint Calculator helps you estimate the amount of Crown paint needed for your painting project in the UK. It calculates the required litres based on the area to be painted, the paint's coverage rate, and the number of coats required.
The calculator uses the Crown paint formula:
Where:
Explanation: The formula divides the total area by the paint's coverage rate to get the paint needed for one coat, then multiplies by the number of coats for the total requirement.
Details: Accurate paint calculation helps avoid wastage, ensures you purchase the right amount, saves money, and prevents project delays due to insufficient materials. Crown paints have specific coverage rates that vary by product type.
Tips: Measure the total area accurately in square metres. Check the coverage rate on your Crown paint tin (typically 10-16 m²/litre). Consider an extra 10% for wastage and touch-ups. Always round up to the nearest litre when purchasing.
Q1: What is the typical coverage rate for Crown paints?
A: Coverage rates vary by product: emulsion typically covers 12-14 m²/litre, gloss paints 15-16 m²/litre, and specialist paints may vary. Always check the specific product's technical data sheet.
Q2: How do I calculate the area of a room?
A: For walls: (Length + Width) × 2 × Height. For ceilings: Length × Width. Subtract areas of windows and doors (typically 2 m² per window/door).
Q3: How many coats are usually needed?
A: Most projects require 2 coats for good coverage. Dark colours over light may need 3 coats. New surfaces or dramatic colour changes often require a primer coat first.
Q4: Should I buy extra paint?
A: Yes, add 10-15% extra for wastage, touch-ups, and future repairs. It's better to have a little left over than to run out mid-project.
Q5: Does surface texture affect coverage?
A: Yes, rough or porous surfaces require more paint. Smooth surfaces provide better coverage. Always prepare surfaces properly before painting.