Calculator
Primer quantity calculator
Converts the product coverage into total litres and, when provided, the number of containers.
Online calculation
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Result
Result
Your result will appear here after calculation.
Calculation formula
Volume = area × coverage in L/m² × number of coats; ml/m² is divided by 1000; with allowance = volume × (1 + allowance / 100).
Example: For 20 m², coverage of 100 ml/m², two coats and a 10% allowance, the estimate is 4.4 L of primer.
Frequently asked questions
How do I convert ml/m² to litres?
Divide the millilitre value by 1,000: 100 ml/m² equals 0.1 L/m².
Is a second coat always needed?
No. The number of coats depends on the substrate and the product instructions, so set it to the value appropriate for your job.