RightCapsule
Find the right coin capsule
Clear sizes. Minimal layout. Built for collectors.
Who we are
RightCapsule is a tiny, fast site focused on one thing: helping you pick the correct capsule size for your coins. No fluff—just millimeters, options (tight/loose or ring), and quick best practices.
Informational articles
Why use capsules?
Protect surfaces and rims; avoid hairlines and contact marks.
How to measure a coin
Calipers, tolerances, and choosing a tight vs loose fit.
Store coins safely
Humidity control, silica gel, sulfur exposure, temperature.
Direct-fit vs ring
Clarity and display vs tolerance and rim protection.
Popular coins
Browse by size
How RightCapsule works
- Open the page for your coin (e.g., 2 Euro coin or Indian Head Cent).
- See the recommended size in millimeters (tight fit) plus an alternative (loose or ring).
- Read quick notes on tolerance, rims, and when to choose ring capsules.
- Follow basic care tips to avoid hairlines and fogging inside capsules.
What makes a good fit? A tight display fit looks cleaner but can press against high rims; a loose or ring option is safer for proofs or coins with slight diameter variance.
Care basics: cotton/nitrile gloves, dry work area, dust blower before closing, and silica gel in storage boxes.
Need help choosing a size? Tell us the coin and we’ll point you to the right capsule: Contact us.