Fountain Pen Line Widths: Fine, Medium, Broad and Specialty Tips - Nib Sizes

Sailor - Rhodium Fine Nib

When it comes to fountain pens, one of the most important choices you’ll make is the nib size. This small but mighty component affects everything from how your writing looks to how it feels. Whether you're a casual note-taker or a calligraphy enthusiast, understanding the differences between nib sizes can transform your writing experience.

Fountain Pen Line Widths - Nib Sizes

🔹 Fine (F) Nibs

Fine nibs produce a thin, crisp line and are often favored by those with small handwriting or who write on standard office paper.

• Line Width: Approximately 0.4mm–0.6mm

• Best For: Detailed writing, note-taking, precision

• Feel: Less ink flow, slightly more feedback on the page

  
  

🔸 Medium (M) Nibs

Pelikan - Medium Size Nib

The medium nib is the most popular and versatile option. It provides a smooth writing experience and balanced line width.

• Line Width: Around 0.6mm–0.8mm

• Best For: Everyday writing, journaling, general use

• Feel: Smooth flow, comfortable for long sessions

  
  

🔶 Broad (B) Nibs

Broad nibs lay down a wider, wetter line, perfect for making bold statements or showcasing ink shading.

• Line Width: Roughly 0.9mm–1.1mm

• Best For: Signatures, expressive writing, ink lovers

• Feel: Generous ink flow, very smooth

✍️ Extra-Fine (EF/XF) Nibs

Extra-fine nibs offer the thinnest line, ideal for precision writing and small grid paper.

• Line Width: Around 0.3mm–0.4mm

• Best For: Technical writing, planners, minimal bleed-through

• Feel: Slightly scratchy for some, but very precise

  
  

Jowo Gold Plated Stub Nib

🖋️ Italic & Stub Nibs

These are specialty nibs used for calligraphy or decorative writing. Italic nibs have sharp edges, while stub nibs are more rounded.

• Line Variation: Vertical strokes are thick, horizontal strokes are thin

• Best For: Calligraphy, headings, artistic writing

• Feel: Requires practice, unique character

  
  

🧠 How to Choose the Right Nib Size

Here are a few tips:

• Small, neat handwriting? Try Fine or Extra-Fine.

• Want smooth flow and line variation? Broad or Stub.

• Need versatility? Medium is your best bet.

• Writing on cheap paper? Stick with finer nibs to avoid bleeding.

  
  

🧾 Final Thoughts

The nib size you choose changes everything—from your comfort while writing to how your letters appear on the page. Exploring different nib types can help you discover your personal writing style and elevate your pen experience.