How to Measure Your Ring Size at Home (Without Guessing)

Every ring we make is made to the size you order. That is the good part and the risky part — so it is worth getting the number right before you check out.

Here are three ways to do it at home. The first is the most accurate.

1. Measure a ring that already fits

This is the best method, because you are measuring a real ring that already sits well on the finger.

  1. Take a ring that fits the finger you have in mind.
  2. Lay it flat and measure straight across the inside of the band, edge to edge, in millimetres.
  3. Match that number to the chart on our Ring Size Guide.

One thing people miss: measure the inside, not the outside. On a wide band the difference is close to a full size.

2. The paper strip method

No ring to copy? Use a strip of paper.

  1. Cut a strip about 5 mm wide and 10 cm long.
  2. Wrap it around the base of the finger — snug, not tight.
  3. Mark where the end overlaps, then lay it flat and measure the length in millimetres.
  4. That length is the circumference. Match it to the chart.

Do not use string. String stretches, and a stretched string gives you a size that is too big. Paper is better. A strip cut from an envelope works.

3. Get measured properly

Any jeweller will size your finger for free, in about a minute. If you are buying a ring that matters — a wedding band, an engagement ring — this is worth the trip.

The four mistakes that cause most returns

Measuring at the wrong time of day

Fingers are smallest in the morning and in the cold. They are largest in the evening, in heat, and after exercise or salty food. Measure at the end of the day, at room temperature. That is the size you want the ring to fit comfortably.

Forgetting the knuckle

The ring has to pass the knuckle. If your knuckle is noticeably bigger than the base of your finger, size to the knuckle and expect the ring to sit a little loose below it. Half a size up is usually the answer.

Ignoring the width of the band

This is the one people are most often caught out by. A wide band fits tighter than a narrow band at the same size. It covers more of the finger, so there is more friction and less room to move.

A simple rule: if you are ordering 8 mm or wider, go up half a size from your usual.

So if you wear a US 9 in a 4 mm band, order a 9.5 in a 10 mm band.

Measuring the wrong hand

Most people's dominant hand is slightly larger. Measure the hand and the exact finger the ring will live on.

A note on how our rings are sized

Every size on the site is a US size. If you only know your UK, EU or Japanese size, the Ring Size Guide has the conversions.

Each band is made by hand at the size and width you choose, which takes 7–10 days before it leaves us. We cannot resize a Damascus steel ring after it is made — the pattern is in the metal itself, and cutting into it would break the pattern. That is why we would rather you spend five minutes measuring now.

If the size is still wrong

It happens. We offer a free size exchange — send it back and we make the right one. No charge, no argument. Just tell us and we will sort it.

But getting it right the first time means you are wearing it two weeks sooner. Worth the paper strip.