Calligraphy Nib Width Calculator

Nib width from letter height and style ratio.

Nib width (mm)

x-height (nib widths)

Ascender (nib widths)

Descender (nib widths)

Pen angle (°)

Tab to move between fields

x-height (mm)

Cap / ascender height (mm)16

Descender depth (mm)6

Recommended line spacing (mm)26

Thin stroke width (mm)1.41

Stroke contrast ratio1.41

How to Use This Calculator

Enter Nib width (mm), x-height (nib widths), and Ascender (nib widths).
Set Descender (nib widths) and Pen angle (°).
Review the x-height (mm) result.
Use Cap / ascender height (mm) and Descender depth (mm) to inform your decision.

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