Ring Size Guide
Updated 10 August 2026 · 3 min read
To find your ring size at home, wrap a strip of paper or string around the base of your finger, mark where it overlaps, and measure the length in millimetres — that is your finger circumference, which maps to a ring size. Measure at the end of the day when fingers are largest.
Method 1: paper or string
Cut a thin strip of paper or a length of string. Wrap it snugly around the base of the finger you want to size — the ring must slide over the knuckle, so if your knuckle is larger, measure there too and choose a size between the two. Mark where the strip overlaps, lay it flat, and measure the length in millimetres. That measurement is your finger circumference; use a size chart to convert it to a UK or US ring size.
Method 2: measure a ring you own
If you already have a ring that fits the right finger, measure the inside diameter across the middle in millimetres and convert that to a size. This is often the most reliable method because the ring is a known good fit.
Tips for an accurate fit
Measure at the end of the day and when you are warm — fingers shrink when cold and swell in heat, and can differ by up to a full size. Take the measurement two or three times to be sure. If you are between sizes, size up; a slightly loose ring is easier to wear and adjust than one that will not pass the knuckle.
For a surprise, borrow a ring the person already wears on the correct finger, or ask a family member. We can also advise if you are unsure — just get in touch before you order.
Made to order and resizing
Every VelvetCarat ring is made to order, so we craft it to your finger size from the start rather than adjusting a stock piece — which means a better fit and less stress on the metal. Complimentary resizing is available within the first year for standard sizes if your size changes; get in touch and we will arrange it.
Frequently Asked Questions
How do I measure my ring size at home?
Wrap paper or string around the base of your finger, mark the overlap, and measure the length in millimetres — that circumference converts to a ring size. Measure at the end of the day for the most accurate fit.
What if I am between two sizes?
Size up. A slightly loose ring still passes the knuckle and is easier to wear and resize than one that is too tight.
Can my ring be resized later?
Yes — complimentary resizing is available within the first year of purchase for standard sizes. Contact us and we will arrange it.
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