Dyeing & Painting Calculators

From tie-dye workshops in Brighton to acrylic pour classes in Edinburgh, dyeing and painting crafts have seen a huge resurgence across the UK. Whether you are dyeing cotton fabric with Dylon or Procion MX dyes, or creating fluid art canvases with pouring medium, accuracy with quantities saves money and avoids disappointing results. Our fabric dye calculator works in metric and uses the weight-of-fabric method (grams) recommended by most UK dye suppliers, so you get consistent colour depth every time.

Acrylic pour painting requires precise ratios of paint to pouring medium — too much medium and the colours wash out, too little and the paint will not flow. Our acrylic pour calculator helps you work out the right volumes for your canvas size in centimetres, including how much silicone oil to add for cell effects. For larger craft projects like painting furniture or stencilling walls, the paint volume calculator and spray paint calculator estimate how many tins or cans you need based on surface area and the manufacturer's quoted coverage per litre.

Colour mixing is both an art and a science. Our colour mixing calculator helps you understand ratios when blending from primary colours, which is especially useful if you buy craft paints in bulk and mix custom shades. Paired with the brush size calculator, you can plan your project materials before you start — reducing waste and unnecessary trips to Hobbycraft, The Range, or your local independent art supplies shop. For stencil work on fabric, the stencil paint calculator estimates the small quantities needed so you do not over-buy specialist fabric paints.