Painting Calculators
Calculators for varnishing, wood panel construction and painting preparation materials.
Varnish Coverage Calculator
Calculate how much varnish you need for your painting based on size, varnish type, number of coats and surface texture. Free online calculator.
Wood Panel Construction Calculator
Calculate panel cut dimensions, cradle bar lengths, gesso amount and total weight for wooden painting panels. Covers cradled, uncradled and torsion box types.
Paint Palette Calculator
Calculate primary colour, white and medium quantities for painting projects based on canvas size, medium and style.
3 free calculators in Painting
Painting Surfaces and Finishes
Choosing and preparing the right painting surface is fundamental to the longevity of any artwork. Wood panels, stretched canvas and linen each require different preparation and finishing approaches. Our calculators help you estimate materials accurately before you start.
The varnish coverage calculator estimates the amount of varnish needed for spray, brush or retouch application, accounting for surface texture and multiple coats. Proper varnishing protects finished paintings from UV damage, dust and atmospheric pollutants.
For artists who prefer rigid supports, the wood panel construction calculator works out cut dimensions, cradle bar requirements, gesso quantities and total weight for cradled and uncradled panels in birch plywood, MDF or poplar.