You can determine your ring size in just a few minutes: measure the circumference of your finger with a thread or tailor's tape measure, then read the result in millimeters in the size chart - Polish, British, and American. Below, you will find both measurement methods explained step by step, along with tips that are important for rings with natural stones, which follow slightly different rules than classic bands.
What affects finger circumference?
Before reaching for a measuring tool, it is worth knowing that finger circumference is not constant. Several factors can change the measurement by as much as a full size:
- The hand on which you wear jewelry. For right-handed people, the fingers on the left hand are usually about one size slimmer than those on the right - and exactly the opposite is true for left-handed people. So measure the finger on the hand on which the ring will actually be worn.
- Time of day and temperature. Your finger circumference is different in the morning than in the evening, and your hands also react to the weather: fingers swell slightly in summer and become slimmer in winter. It is safest to measure at the end of the day, at room temperature.
- Finger shape. If you have a wider knuckle, choose a ring that goes onto your finger with slight resistance - this ensures that it will not slip off during the day.
Already know your size? That makes things easier
Many of our rings with druzy stones and raw stones are made as unique pieces and in specific sizes - the Amethyst Druzy Ring size 13 (from PLN 150) fits a finger with a circumference of approximately 53 mm, while the Raw Tourmaline Ring size 15 (from PLN 250) fits approximately 55 mm. You will find the full selection in the rings with stones collection, while models for which an exact measurement is not necessary can be found in the elastic rings collection.
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How to measure your finger circumference at home?
The easiest way is to use a tailor's tape measure: wrap it around your finger so that it lies against the skin without squeezing it. The number of millimeters you read is your finger circumference - use it to choose your ring size.
Don't have a tape measure? All you need is thread and a ruler. Wrap the thread around the widest part of your finger, mark the point where the ends meet, and then measure its length with a ruler. Do not pull the thread too tightly - otherwise the ring may turn out to be too small. To be sure, repeat the measurement two or three times and compare the results.
The same home method works for measuring your wrist - if you are putting together a set, take a look at the guide on how to choose a bracelet size.
Ring size chart - Poland, UK, USA
In Poland and most European countries, a ring size approximately corresponds to the finger circumference in millimeters minus 40, and the scale ranges roughly from 4 to 34. In the United Kingdom, letter designations are used (from G to Z), while in the USA, sizes range from 4 to 14, often including half sizes. So one finger circumference measurement is enough to find your way around all of these systems:
| Finger circumference (mm) | Polish size (EU) | UK size | USA size |
|---|---|---|---|
| 47 | 7 | H | 4 |
| 49 | 9 | J | 5 |
| 51 | 11 | L | 5,5–6 |
| 53 | 13 | M–N | 6,5 |
| 55 | 15 | O | 7–7,5 |
| 57 | 17 | P–Q | 8 |
| 59 | 19 | R | 8,5–9 |
| 61 | 21 | S–T | 9,5 |
| 63 | 23 | U–V | 10,5 |
| 65 | 25 | W | 11 |
The values in the chart are approximate and rounded to the nearest typical size. If your result falls between sizes, choose the larger one - a stone ring cannot be stretched or narrowed like a metal band.
Stone rings and classic bands - what should you keep in mind?
Mineral rings differ from those made exclusively of silver or gold. A stone has its own structure and weight, and the entire form is usually more substantial than a thin band - which means that the same size may fit your finger slightly differently. This makes it even more important to measure your finger carefully.
If the ring is meant to symbolize a relationship before an engagement, see promise ring: what it means, which finger to wear it on, and how much it costs.
The cut also matters. Cut rings - with smoky quartz, rose quartz, amethyst, opalite, malachite, howlite, or onyx - are narrower, so they are less noticeable on the finger and simply more comfortable for many people. Stone rings from the exclusive line (rock crystal, citrine, aquamarine, tourmaline, emerald) are heavier and more substantial, so they are more noticeable when worn. Models with agate and amethyst druzy stones, on the other hand, combine a striking raw crystal with a comfortable-to-wear band.
Worried about choosing the wrong size, for example when buying a gift? A safe choice is an elastic ring, which adjusts to the finger.
However, you will choose your size most accurately in person. We invite you to the Brazi boutique at 61 Grzybowska Street, unit 5 (Platinum Towers) in Warsaw - we will measure your finger with professional ring sizers and help you choose a model. Have questions before ordering online? Write to brazi@brazi.pl or call: +48 575 666 195.
FAQ - frequently asked questions about ring size
How can I measure my ring size without visiting a jeweler?
Wrap thread or a tailor's tape measure around the widest part of your finger and read the result in millimeters - this is your finger circumference, which you compare with the size chart above. Measure in the evening, without pulling it tight, ideally two or three times for accuracy.
Which finger should I measure - on my left or right hand?
Always measure the finger on which the ring will be worn. There may be a difference of about one size between the hands: for right-handed people, the fingers on the left hand are usually slimmer, while for left-handed people, the fingers on the right hand are usually slimmer.
What should I do if the result falls between sizes?
Choose the larger size - a ring that is too tight will be uncomfortable, and a stone band cannot be enlarged. The exception is a wide knuckle: in that case, a model that goes on with slight resistance is better, because it will not slip off during the day.
Does an elastic ring have a universal size?
Yes - rings with an elastic base adjust to the finger within a typical size range, which makes them ideal as gifts when you do not know the exact finger circumference of the recipient.
Read also: How to choose a bracelet size? and Tanzanite Ring - Properties, Meaning and Jewelry