Grid Method & Proportion Calculator for Artists

Dating back to the Renaissance masters, including Leonardo da Vinci and Albrecht Dürer, the grid method is one of the most reliable and time-tested techniques for drawing and painting with accurate proportions. By breaking down a complex reference image into manageable, discrete cells, artists can isolate individual contours, negative spaces, and value angles without being deceived by the brain’s optical preconceptions. Pintado’s Grid Method Calculator modernizes this atelier discipline for the digital era: simply upload your reference photograph to generate a fully customizable overlay grid. You can toggle between uniform square cells or custom column-and-row ratios, adjust line opacity and stroke thickness, activate classical atelier diagonal sight lines (X-cross guides), and display alphanumeric coordinate labels (A-Z, 1-N). Everything executes in local browser Canvas memory, guaranteeing complete privacy and zero image uploads.