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An Easy Way to Find Your Ring Size

If you are looking to purchase a ring for yourself or as a gift and you are uncertain of the ring size you need then just follow these easy steps!

Firstly, you want to make sure that you measure the finger when it is at its largest. You don't want to buy a ring that is too small and the wearer struggles to get it on their finger! Fingers swell in the heat, so do not measure cold fingers. For an accurate reading it is best to measure the finger at the end of the day when the finger is at its largest.

To measure the finger all you need is :

  • a piece of string, say 6 inches long (a strip of paper will do just as well)

  • a pen to mark the string/paper

  • a ruler

Firstly, wrap the piece of string or paper around the base of the finger that you want to measure.

Then, take the pen and mark on the string or paper where it overlaps to form a complete circle around your finger.

Then, run the string or paper along your ruler to measure it's length in mm.

Lastly compare this measurement with the chart below to find the nearest measurement to yours. This will then be the size you require.

Ring Size (USA)  :  4        4.5     5     5.5     6        6.5     7     7.5     8        8.5     9        9.5     10   

                    mm  :  46.5   47.8   49   50.3   51.5   52.8   54   55.3   56.6   57.6   59.9   60.3   61.6

Ring Size (USA)  :  10.5   11      11.5    12     12.5   13

                    mm  :  62.8   64.1   65.3   66.6   67.9   69.1

If you want to buy the ring as a surprise for someone you can always ask a close friend or relative of the recipient if they know their ring size. Or you can always take one of their rings and run it down a tapered candle or similar item, then measure the circumference as before with a piece of string or strip of paper and compare the measurement to the chart.

As a general rule you will find that your fingers will be a half size larger on your dominant hand (the hand that you write with)

Another point to consider is if the wearer suffers from arthritis and has wider knuckles than the base of their finger. In this case measure both the knuckle and the base of the finger and go for a point somewhere in between.

Once you find out your ring finger size i would love to hear of the results as i am running a survey of the average ring finger size on my web site. So, please go to and simply enter your ring finger size in the survey which you can find on the home page on the right hand size.  




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