How to Choose a Fountain Pen Nib Size: A 10-Minute Test

Fountain pen nibs come in a variety of sizes, each offering a different line width and writing character. Extra fine (EF) nibs produce the thinnest lines, typically around 0.4-0.5mm, making them perfect for detailed work and small handwriting. Fine (F) nibs create slightly broader strokes at 0.5-0.6mm, offering a good balance for everyday writing. Medium (M) nibs produce 0.7-0.8mm lines and are the most popular choice for their smooth flow and readability. Broad (B) nibs create bold 0.9-1.0mm strokes that showcase ink shading beautifully. Stub nibs offer line variation, creating thick downstrokes and thin cross-strokes that add character to your writing. Unlike ballpoint pens, fountain pens respond to writing angle and pressure, so the same nib can produce different effects depending on how you hold it.

The best way to choose your ideal nib is through hands-on testing with your actual writing style. Start by gathering samples of different nib sizes, whether through visiting our store in Kingston or trying pens from friends. Write the same paragraph with each nib size, using your normal grip and writing speed. Include both print and cursive if you use both styles. Pay attention to how the nib feels on paper, whether it skips or flows smoothly, and if the line width suits your natural letter size. Test on the type of paper you'll use most often, as fountain pen performance varies significantly between paper types. Don't just write single words, write full sentences and paragraphs to get a true feel for each nib's behaviour during extended use.

Your ideal nib size depends on several personal factors that become clear during testing. If you have small, precise handwriting, extra fine or fine nibs will give you the control you need without making your writing look heavy. Those with larger handwriting often prefer medium or broad nibs that complement their natural letter size. Consider your grip pressure too: light writers often benefit from wetter, broader nibs that flow easily, while heavy-handed writers might prefer finer nibs that won't spread too much under pressure. Think about your primary use as well. For detailed note-taking and forms, finer nibs work best, while journaling and letter writing can showcase the character of broader nibs. Ink refills also play a role, as some inks perform better with specific nib sizes.

After your testing session, you'll likely find one or two nib sizes that feel most natural and produce the results you want. If you're torn between two sizes, consider starting with the more versatile option, typically a fine or medium nib, then adding other sizes to your collection later. Many fountain pen enthusiasts own multiple pens with different nib sizes for various tasks. Remember that nib sizing can vary between manufacturers, so a Japanese fine nib might write closer to a European extra fine. When you're ready to purchase, bring along a sample of your handwriting to compare with the pen you're considering. At Art Noise, we're always happy to help you test different options to find your perfect match. The right nib will make writing feel effortless and enjoyable, turning everyday tasks into moments of tactile pleasure.