How to accurately measure your ring size

Baubou rings

Not sure of your ring size? 

Here’s a quick guide and sizing chart for you to use to make sure you get the best fit.

If you’re using an existing ring that’s comfortable:

  1. Use a ruler and measure the inside diameter of the ring.
  2. Then use the sizing chart below to match the correct size.

If starting from scratch:

  1. Use a piece of thread or string and wrap it around your ring finger.
  2. Then use a ruler to measure the length in millimeters (mm).
  3. Make sure to leave a little room, enough so that the ring fits comfortably without slipping off.
  4. Then use the sizing chart below and match the size according to the ‘length’ dimension.

If stuck between 2 sizes, it’s best to opt for the bigger one. 

Still not sure?

We’re here to help, so please contact us at and we can discuss the best option for you!