Pick the closest measurement on the ring size chart to find your ring size. Measure the string or paper with a ruler (mm) then divide by 3.14 (or Pi) to get the diameter of the ring. Mark the point where the ends meet with a pen. The average ring size for a woman is size 5 to 7 and size 10 to 11 for men. Wrap string or paper around the base of your finger.

It's not easy to size up a small ring, so larger is always better if you go this route.

Go for a larger size: If you're not sure the person's exact size, you can purchase a larger-than-average one and get it resized later.

O 00 Size 4 46.8 mm Size 8 57 mm Size 11.5 65.9 mm Size 4.5 48 mm Size 8.5 58.3 mm RING SIZE CONVERSION CHART Measurements are equivalent to the interior circumference of the corresponding ring s.ze 6.5 mm Size 63. Pull the pointed end Tab 'B' through Slot 'A'until the sizer is snug. Wrap the sizer around the finger where the ring will be worn. If the ring falls between two of the s.zes, order the quarter s.ze in the middle. Method A: Measure Your Finger Use a quarter to make sure this page is printed at the correct size. Or if a friend or family member has similarly sized hands as the person you're shopping for, you might have them try on rings and purchase one of a similar size. of the ring to one of the circles on the guide. This ring sizer tool is great to have especially when you want to get engaged or married. Use this ring size chart and determine what women and men sizes are. If they don’t have a ring they wear on that finger, you. In the UK, ring sizes are measured on an alphabetic scale ranging from A to Z+ with half sizes in between - the most common sizes are between I - Z. Therefore if you’re Canadian then our US ring sizer chart will work for you too. You will find that across the US and Canada, the US ring size is standard for both countries. One is designed for US ring sizes and the other for UK ring sizes.

Ask their friends and family: Other people who know this person well might already know their ring size, so it doesn't hurt to ask. This printable ring sizer can be used to correctly determine your perfect ring size. To measure your ring size at home, you can either take your ring and compare it to the ring guides, making sure the diameters match. All you need to do is carefully borrow a ring you know your partner wears on their ring finger, and print our template out (check it’s printed correctly by measuring the circles against a ruler), then find the circle on the ring size template that your partner’s ring matches up to. You will find two different ring size guide printables for you to choose from.

Take a look at their other jewelry: If you can find another ring in their jewelry collection that fits them, you can measure that with a piece of string or take it to a jewelry store to get help comparing sizes.

There are a few different ways you can find someone's ring size if you're trying to surprise them:

Printable ring sizer bling