Ink Volume Calculator — How Much Calligraphy Ink

Broad-edge calligraphy uses far more ink per character than a fountain pen, but the totals are still small. A typical A4 page with a 2 mm nib works out at roughly 0.2-0.4 ml including waste in this model. A set of 100 wedding envelopes (around 45 characters each at a 2.5 mm nib) comes to roughly 3-8 ml. The amount varies significantly with nib width and writing density — enter your own figures above for a project-specific estimate.

Ink is lost when loading the nib, dripping during writing, remaining in the nib after cleaning, and drying on the palette or mixing surface. Broad nibs waste more proportionally than fine nibs. 40% is a practical allowance.

A 30 ml bottle of calligraphy ink typically lasts several months of regular practice. For professional work, expect 30 ml to cover roughly 20,000-40,000 characters depending on nib width.

Yes — thick inks like sumi ink are ground to different consistencies and lay down different film thicknesses. Walnut ink is slightly thicker than standard. Iron gall ink flows thinner. This calculator adjusts for ink type.

For consistent colour across a project, mix all the ink you need at once — especially for diluted or mixed colours. This calculator helps you determine the right amount to mix.