Tips for Choosing the Right Ring Size

Finger size can vary depending on the time of day and temperature, so a ring may sometimes feel loose or tight. The best time to try on a ring and find the correct size is usually in the middle of the day at normal room temperature.

The ring size measurements listed on the side refer to the inner diameter of the ring in millimetres. Another commonly used ring size system is based on the inner circumference (the length around the inside of the ring). You can see how the sizes correspond to each other in the conversion chart.

At home, you can determine your ring size by cutting a strip of paper (or similar material) and wrapping it around your finger. Keep the paper as round as possible around the finger to best mimic a real ring. Mark with a pen where the strip feels comfortable. Then measure the length of the straightened paper strip to get the inner circumference (in mm). Using the conversion chart, you can then find the corresponding inner diameter in millimetres — that’s your ring size.

If you already have a ring that fits well, you can measure its inner diameter. The most accurate result comes from using a caliper (vernier caliper), but a ruler gives a sufficiently good approximation. Note, however, that if the ring is old, it may no longer be perfectly round, which can distort the measurement.

Please keep in mind that the width of the ring affects size selection. A wider band ring is generally about half a size larger than a narrow one.

It’s also good to consider the structure of your finger and how the knuckle affects wearing the ring.

You are welcome to come to my studio to have your ring size measured accurately.