Paint & Colour Calculators
Calculators for paint coverage, colour mixing, dilution ratios, palettes and paint costs.
Paint Coverage Calculator
Calculate how much artist paint you need for any canvas or surface area based on paint type, thickness and number of coats. Free online calculator.
Colour Mixing Calculator
Work out pigment ratios to mix a target colour from primary colours by volume or weight. Covers acrylics, oils and watercolours.
Paint Dilution Calculator
Calculate the correct dilution ratio of paint to thinner or medium for your painting technique. Covers acrylics, oils and watercolours.
Palette Calculator
Plan how much of each paint colour to squeeze onto your palette for a painting session. Avoid waste and never run out mid-painting.
Colour Wheel Calculator
Find harmonious colour combinations using colour wheel theory including complementary, triadic, analogous and split schemes for artists.
Complementary Colour Calculator
Find complementary, split-complementary and triadic colours for any hue. Build stronger art compositions with colour theory principles.
Paint Volume Calculator
Calculate the volume of artist paint needed based on canvas or surface area, number of coats and paint type. Free online calculator.
Acrylic Medium Calculator
Work out how much gel medium, retarder or flow improver to add to your acrylic paint. Get the correct mixing ratios for any technique.
Oil Medium Calculator
Calculate linseed oil, turpentine and varnish ratios for oil painting mediums. Covers fat-over-lean rules and common medium recipes.
Paint Cost Calculator
Estimate the total cost of artist paint needed for your project based on coverage area, number of coats and price per tube or tin.
10 free calculators in Paint & Colour
Paint & Colour for Artists
Understanding paint coverage, colour theory and medium ratios is fundamental to every painting practice. Whether you work in acrylics, oils or watercolours, knowing how much paint to buy and how to mix it correctly saves money and produces better results.
Our paint coverage calculator helps you estimate how much paint you need for any canvas or surface area, factoring in the number of coats and paint type. The colour mixing calculator works out pigment ratios to achieve your target colour from primary colours.
For painters who mix their own mediums, the acrylic medium calculator and oil medium calculator provide precise ratios for gel mediums, retarders, linseed oil and turpentine to achieve the consistency and drying time you need.