How Do I Know Her Ring Size?

Mar 3, 2017

"This is a question I often hear when a man has purchased his engagement ring.  For those who want to keep the surprise there are several different methods to obtain the correct finger size or at least get close to it.

I should start by telling you what is the correct finger-surprisingly a lot of men have no idea. It is the ring finger on the LEFT hand. i.e the one between your pinky and middle finger.

Here are some common suggestions for getting the correct finger size.  WORD OF WARNING: You will need to be careful that some of the methods below don’t let the cat out of the bag.

Ask one of her close friends.  Girlfriends often go shopping together and if you can ask her friend to visit a jewellery store she can ask for her ring finger measurement and at the same time find out your partner’s size too.  

Ask her mother or sister (if you know she can keep a secret).  She may already know or can most probably find out discreetly.

If you have a female friend who is already engaged ask her to let your girlfriend try on her ring.  Women often try on each others jewellery for fun.

Perhaps you wear a ring (or rings). While playing around have your partner put your rings on and see if you can get a gauge on size.

If you have the opportunity, take one of her rings and measure it on one of your fingers and make a mark on your finger.  Obviously make sure it is a ring she wears on her ring finger or a similar finger.  Then go into a jewellery store and find out what this mark corresponds to with a ring sizer.

Better yet, if you do manage to get hold of one of her rings take it directly into a jewellery store and have it measured. If it is the right hand ring finger this should give you a close estimation.  Generally if someone is right handed their left hand ring finger is approximately half a size smaller.

It is also possible to determine her finger size by placing one of her rings on a piece of paper and tracing a line around the inside of the ring.  You can then measure the diameter and pass this on to your jeweller.

A lot of websites have printable ring sizers.  Simply print out the page and match her ring to the different diameters on the page.  Try this one:

Here are a few extra things to keep in mind:

• The average finger size in New Zealand is M.

• If the ring has a wide band make sure you choose a slightly larger finger size.

• If it is a custom design or an intricate ring with a lot of diamonds in the band check with your jeweller if it can be resized.

• If in doubt, choosing a slightly bigger size is preferable-it is easier and less costly to make a ring smaller.

• Different climatic conditions (hot and cold weather) will affect a persons ring size (sometimes up to 1 or 2 sizes).

Finally don’t stress too much if you can’t get the correct size.  The majority of rings can easily be resized by your jeweller at little or no expense.  The main thing is that the ring is big enough to try on when you present it to her.

Congratulations!  You have now done all the hard work, it will soon be time to celebrate."