The size of the ring is especially important for the comfort of wearing the ring. When buying a diamond ring, couples should pay attention to accurately measure the size of the ring. How to know the size of the ring, how to measure the size of the ring? Some boys want to surprise the girl, so they can only sneak to measure the size of the finger when the girl is asleep, what should pay attention to when measuring the size of the ring? Let's take a look.


How to Measure Ring Size


If you are measuring yourself, you can prepare a note or a rope, a pen, and a ruler. Rotate the rope or paper strip around the thickest position of the finger to measure, and tighten; then use the pen to make a mark on the same position of the two loops of the rope, take off the rope and straighten it, and measure the length between the two mark points with a ruler. This length is the circumference of the finger.



What should pay attention to when measuring the size of the ring?

1. Pay attention to the time of measuring the hand: the circumference of the finger will be different due to the influence of thermal expansion and contraction. It is best not to measure when it is too cold in the morning or evening, or when it is too hot at noon, the measured ring size may not be very accurate. In the winter, you can choose a slightly larger ring size; in the summer, you can choose a smaller ring size.


2. When measuring the size of the ring, measure the thickest part of the finger. Because when people wearing the ring, they will pass the knuckle. If the measurement is not the thickest part of the knuckle, the ring can not be worn.


3. Multiple measurements take the average: personal measurement will inevitably have errors, you can measure the ring size multiple times to ensure the accuracy of the data.



How to see the ring size comparison table?

The ring size comparison table is different from different countries. The common ones are American size and Hong Kong size. When you buy a ring, you should ask the merchant to see which ring size is available.



American ring size comparison table

The ring size of the ring also known as hand-inch. The hand-inch has its own unique unit name - "number". The American name ring is also the use of this unit as the size of the expression, then we will take a look at the ring size comparison table of the United States and Britain.


  • 1. American size 5 ring
  • Correspondence: UK J1/2, ring diameter 15.60mm, ring circumference 49.00mm;


  • 2. American size 6 ring
  • Correspondence: UK M, ring diameter 16.40mm, ring circumference 52.00mm;


  • 3. American size 7 ring
  • Correspondence: UK O, ring diameter 17.30mm, ring circumference 54.50mm;


  • 4. American size 8 ring
  • Correspondence: UK Q, ring diameter 18.10mm, ring circumference 57.00mm;


  • 5. American size 9 ring
  • Correspondence: UK S, ring diameter 18.90mm, ring circumference 59.50mm;


  • 6. American size 10 ring
  • Correspondence: UK T1/2, ring diameter 19.70mm, ring circumference 62.00mm;


  • 7. American size 11 ring
  • Correspondence: UK V1/2, ring diameter 20.60mm, ring circumference 64.50mm;


  • 8. American size 12 ring
  • Correspondence: UK Y, ring diameter 21.40mm, ring circumference 67.50mm;


    Today, the world jewelry market mainly uses France and the United States ring size measurement methods personalized mother’s rings, and we use French measurement method in our country.


    The French method is based on the circumference of the inner ring of the birthstone ring. The calculation method is: the ring size = the inner circumference of the ring is - 40 (in millimeters); The American way takes the diameter of the inner ring (in millimeters).


    Therefore, the conversion of the American ring sizes is: Ring inner ring size (method) +40 = pi (3.1416) * the inner ring diameter of the custom name rings(US). For example, if you buy a ring with a size of 10.5, then the size of the US ring is (10.5+40)/3.1416≈16. Your personalized jewelry online store.

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