Choose a fountain pen nib by comparing the maker's width guide, the line you want, your paper and how the exact nib writes. Nib labels are not a universal measurement across brands, so check the product line and nib type rather than assuming that the same letter means the same width everywhere.
Nib grades such as fine, medium or broad describe a writing width, but makers and nib shapes vary. A broad nib may also refer to a specialty shape that makes line variation. Use the maker’s examples and product guide for the exact pen.
Product comparison
| Nib label or type | What to compare |
|---|---|
| Fine or extra fine | Line sample, paper and writing pressure |
| Medium or broad | Line width shown by the maker |
| Italic or calligraphy | Shape and direction of strokes |
| Replacement nib | Compatibility with the exact pen model |
What to do
- Choose the pen model and confirm which nibs fit it.
- Compare writing samples from that maker on paper similar to yours.
- Check whether the nib is replaceable and how the maker describes its width.
Related guides
Sources
Common questions
Are fountain pen nib sizes standard across brands?
No. Compare each maker's own examples and specifications.
Is a broad nib always better for beginners?
No. The preferred line depends on the writer, paper and pen. Try a writing sample if available.
Can I replace a nib on any fountain pen?
Replacement options depend on model and nib system. Check the maker's compatibility information.