Ordering a ring online and getting the wrong size is the most common mistake when buying jewelry. Everyone's fingers are different, and the "average size" only exists on paper. Here are three ways to measure correctly at home.

Method 1 — Sierra Sizing Strip

Print out the Sierra sizing strip, cut it out, and wrap it around the finger where you plan to wear the ring. Your size will be visible along the line on the strip.

Important: apply the strip snugly but without squeezing. And consider the knuckle — the ring must pass over it. If your knuckle is larger than your finger at the wearing point, measure over the knuckle.

Method 2 — Using an Existing Ring

If you have a ring that fits, place it on a piece of paper and trace the inside circle with a pencil. Measure the diameter of the resulting circle in millimeters with a ruler. This is your size.

For example, a diameter of 17 mm = size 17. Most Ukrainian jewelers use diameter as the size.

Method 3 — Body Parameter Chart

A rough but useful guide if you don't have anything to measure with:

Size S (height up to 165 cm, weight up to 55 kg) — usually 15.5–16.5
Size M (height 165–172 cm, weight 55–65 kg) — usually 17–17.5
Size L (height from 172 cm or weight from 65 kg) — usually 18–19

This is not an exact method. But if you're buying a surprise and have no other reference, it's better than guessing.

When to Measure

Not in the morning or evening — fingers swell in the morning and after physical exertion. The most accurate result is in the afternoon at room temperature. In winter, fingers are slightly thinner than in summer — this should also be taken into account.

Frequently Asked Questions

What if the ring doesn't pass over the knuckle?

Measure over the knuckle, not the finger. Especially if you wear the ring on your index or ring finger where the knuckle is more prominent.

Is there a big difference between size 17 and 17.5?

Half a millimeter. It's noticeable but not critical. If you're debating between two sizes, take the larger one. A slightly loose ring is better than one that pinches.