Ring Sizer
Step 1 of 2
Place your credit card on the screen below. Adjust the slider with the + and - buttons until the size of the picture matches the size of your credit card. This sets the screen at the right dimensions so the ring size will be accurate.
Prefer to measure on paper?Download the ring sizeras a PDF and print it out instead.
Step 2 of 2
Place the ring on the circle below. Use the + and - buttons to adjust the slider until the circle fits snugly inside the ring. Hint: A ring that lies flat against the screen will work best.
The estimated ring size appears inside the circle. Please print this page and take it to your local jeweler.
Prefer to measure on paper?Download the ring sizeras a PDF and print it out instead.
Ring Sizer
To use the ring sizer, grab a credit card from your wallet and another ring worn by the wearer on the same finger, if you can find one. (Or another way to measure the circumference of the wearer’s finger).

More on this topic
-
What Ring Will Look Best on My Finger?
Different engagement rings flatter different finger types. Find the most flattering ring for your unique finger shape and size, be it short, long, slender or wide.
-
How Do I Know Her Ring Size?
Your surprise proposal may be foiled by a tiny, but very important detail: you don't know what size to make the engagement ring.
-
5 Things to Consider When Buying an Engagement Ring
Buying an engagement ring is the ultimate romantic act — but there are a lot of practical considerations that go along with it.