Ring Size Guide — P.phoebus

Finding your ring size at home takes about two minutes and requires nothing more than a strip of paper and a ruler. Here's exactly how to do it — plus a size chart that covers US, UK, and EU sizing.

Method 1 — Paper strip (most accurate)

1. Cut a thin strip of paper approximately 10cm long and 0.5cm wide
2. Wrap it snugly around the base of the finger you want to measure — snug but not tight
3. Mark where the paper overlaps with a pen
4. Lay the strip flat and measure the length in millimeters from the end to the mark
5. This measurement is your finger circumference — use the chart below to find your size

Method 2 — Existing ring

1. Find a ring that fits the correct finger well
2. Place it on a ruler and measure the internal diameter in millimeters
3. Use the diameter column in the chart below to find your size

Ring size chart

US Size	UK Size	EU Size	Diameter (mm)	Circumference (mm)
5	J	49	15.7	49.3
5.5	K	51	16.1	50.6
6	L	52	16.5	51.9
6.5	M	53	16.9	53.1
7	N	54	17.3	54.4
7.5	O	56	17.7	55.7
8	P	57	18.1	57.0
8.5	Q	58	18.5	58.3
9	R	59	18.9	59.5
9.5	S	61	19.3	60.8
10	T	62	19.7	62.1

Tips for accurate sizing

• Measure at the end of the day — fingers are slightly larger in the evening due to natural swelling. A ring sized in the morning may feel tight by afternoon.
• Measure at room temperature — cold makes fingers shrink; heat makes them expand. Avoid measuring immediately after coming in from cold weather or after a hot shower.
• Consider the knuckle — if your knuckle is significantly wider than the base of your finger, size for the knuckle and expect the ring to be slightly loose at the base. A ring that fits over the knuckle comfortably but sits snugly below it is correctly sized.
• When between sizes, go larger — a ring that's slightly large is more comfortable than one that's too tight, and easier to resize if needed.
• Different fingers, different sizes — measure the specific finger you intend to wear the ring on. Ring size varies between fingers and between hands.

Frequently asked questions

What is the most common women's ring size?

The most common women's ring size in the US is 6 to 7, with size 6 being the most frequently ordered. However, ring size varies significantly by individual — measuring your specific finger is always more reliable than assuming average sizing. P.phoebus rings are available in sizes 5 through 10 to accommodate the full range.

Can I resize a gold-plated ring?

Gold-plated rings can be resized by a jeweler, but the process affects the plating in the area worked on — the resized section will typically need to be re-plated after sizing. For this reason, getting the size right before purchase is preferable. Use the measurement methods above and, when in doubt, order the larger of two adjacent sizes.

My ring feels tight at the end of the day — is it the wrong size?

Not necessarily. Fingers naturally swell slightly throughout the day — from heat, activity, and fluid retention. A ring that fits well in the morning may feel snug by evening. If the ring is uncomfortable by midday or leaves a visible indentation when removed, it's likely too small. If it's only slightly snug at the end of a warm day, the fit may be correct.

How do I measure ring size as a gift without the recipient knowing?

The most reliable method: borrow a ring that fits the intended finger from the recipient's jewelry collection and measure its internal diameter with a ruler. Alternatively, press the ring into a bar of soap to get an impression and measure that. If neither is possible, size 6 or 7 is the safest guess for most women — and P.phoebus's 30-day return policy means sizing exchanges are straightforward.

Do P.phoebus rings run true to size?

Yes — P.phoebus rings are sized to standard US ring sizing. The measurement chart above will give you an accurate size. If you're between sizes, we recommend ordering the larger size for comfort.