Ring Size Guide
Find Your Perfect Ring Size
Use one of the simple methods below to estimate your UK ring size. For valuable, wide-band or bespoke rings, we recommend professional sizing for the most accurate fit.
Measure an Existing Ring
Choose a ring that fits the intended finger comfortably.
- Place the ring on a flat surface.
- Measure straight across the inside of the ring at its widest point.
- Record the inside diameter in millimetres.
- Match the measurement to the “Inside Diameter” column in the ring-size chart below.
Measure Your Finger
- Wrap a narrow strip of paper or non-stretch string around the base of your finger.
- Keep it comfortably snug without pulling it tightly.
- Mark the point where the ends meet.
- Lay it flat and measure the length in millimetres.
- Match this circumference measurement to the chart below.
Helpful Sizing Tips
- Measure your finger two or three times to confirm the result.
- Measure toward the end of the day, when your hands are at their normal size.
- Avoid measuring when your hands are unusually hot or cold.
- Your dominant hand may be slightly larger.
- Wider bands can feel tighter and may require a slightly larger size.
- If your measurement falls between two sizes, choose the larger size.
Ring Size Conversion Chart
Compare your inside diameter or circumference with the UK, US and approximate European sizes below.
Bracelet and Bangle Sizing
Measure your wrist at the position where you intend to wear the bracelet.
- Close fit: Add approximately 0.5–1 cm to your wrist measurement.
- Comfortable fit: Add approximately 1–1.5 cm.
- Relaxed fit: Add approximately 1.5–2 cm.
For a solid bangle, measure around the widest part of your hand while your thumb is folded into your palm.
Need Help With Sizing?
Our Mayfair team will be happy to help you find the correct size before ordering. Contact us for personal guidance or to arrange a professional sizing consultation.