Calculators
Clear inputs. Useful results.
Enter your dimensions. Formulas, assumptions and quantities are shown with every calculation.
Calculation result
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Calculated from your supplied dimensions.
Calculation steps
Calculation formula
Area × coats / coverage × (1 + waste).
Preliminary estimate. Not construction documentation. Professional review required.
Interior plaster and paint
How much paint to buy: measurements, a trial area and a work plan
Measure walls, interpret coverage and calculate litres using the product documentation. A practical ordering example, surface preparation and safe renovation planning.
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Introduction and construction planning
Building a renovation estimate: quantities, prices and concealed work
From measurements to comparable quotations and a change log. A paint calculation and a budgeting method without invented market prices.
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