How to Find Your Ring Size

Not sure what size to order? Here’s how to find your perfect fit — from home, no tools needed!


🧵 Use a Strip of Paper or String

  1. Cut a thin strip of paper or use a piece of string.
  2. Wrap it snugly around the base of the finger you want to measure.
  3. Mark where the paper or string overlaps.
  4. Measure the length (in millimeters) using a ruler — this is your finger’s circumference.
  5. Use the chart below to find your Italian ring size.

📏 Ring Size Chart – Italian Sizes (Standard IT)

IT SizeDiameter (mm)Circumference (mm)
915.248
1015.649
1115.950
1216.251
1316.552
1416.853
1517.254
1617.555
1717.856
1818.157
1918.458
2018.859
2119.160
2219.461
2319.762
2420.163

We use Italian sizes. If you’re unsure or using a different system (EU, US, UK), just email us — we’ll convert it for you.


💡 Tips

  • Measure your finger at the end of the day, when it’s naturally a bit larger.
  • Don’t measure when your hands are cold — fingers shrink!
  • If you’re between sizes, we recommend choosing the larger one.
  • For wide or chunky rings, consider sizing up for extra comfort.

🧠 Already have a ring that fits? Not sure about the size?

If you already own a ring that fits perfectly but you don’t know its size, you can use your phone to find out.
Just place the ring on your screen and use one of these free apps to measure it accurately:

📱 Android: Ring Sizer – Cherry Design
📱 iPhone: Ring Sizer – Jason Withers


📩 Still unsure?

Reach out at peanutshelljewelry@gmail.com — we’re happy to help you find your perfect fit!