How to measure your ring size? (Even secretly for your partner)

Ringmaat opmeten met meetlint en moissanite ring op crème zijde

Whether you're looking for a ring for yourself or secretly picking out an engagement ring — measuring the correct ring size is easier than you think. Below, we'll explain it step by step.

🔢 Method 1: Measure with a piece of paper or string (for yourself)

This is the easiest way to measure your ring size at home:

Cut a narrow strip of paper (or use a piece of string or thread).
Wrap it snugly around the finger on which you want to wear the ring — not too tight, not too loose.
Mark the point where the paper overlaps with a pen.
Lay the paper flat and measure the length in millimeters.
Find the corresponding ring size in the table below.

💡 Tip: Preferably measure your finger at the end of the day — fingers are slightly thicker then due to body temperature and movement. This gives the most accurate size.

💍 Method 2: Measure an existing ring (for yourself or your partner)

Do you already have a ring that fits well? Then this is the fastest method:

Take a ring that fits well on the desired finger.
Measure the inner diameter of the ring with a ruler — from inside to inside, through the middle.
Note the number in millimeters.
Find the diameter in the table below.

💡 Tip: Don't have a ruler? Place the ring on a piece of paper, trace the inside with a pencil, and then measure the circle.

🕵️ Secretly measuring your partner's ring size

Want to surprise with an engagement or gift? No worries — here are four clever tricks to find out your partner's ring size without them knowing:

Trick 1 — Secretly borrow a ring

Take a ring your partner wears regularly (on the correct finger) and measure the inner diameter as described in method 2. Then carefully put the ring back.

Trick 2 — Press the ring into soap or clay

Do you have temporary access to your partner's ring? Gently press it into a piece of soap or clay. The impression will give you the inner diameter that you can measure with a ruler.

Trick 3 — Ask a friend or family member

Confide in someone who sees your partner regularly — a friend, sister, or mother — and ask them if they can subtly find out the size.

Trick 4 — Estimate the size based on body type

Do you really have no way to measure? As a rule of thumb:

Slim / small hands → ring size 50–52
Average build → ring size 54–56
Larger build / broad fingers → ring size 58–60

ℹ️ Not sure? Always choose the larger size. A ring that is slightly too large can be resized by a jeweler. Enlarging a ring that is too small is more difficult.

📏 Ring sizes table

Use the table below to convert your circumference or diameter to the correct ring size.

Ring Size (EU)	Circumference (mm)	Diameter (mm)	Suitable for
46	46 mm	14.6 mm	Very slender / small finger
48	48 mm	15.3 mm	Slender
50	50 mm	15.9 mm	Slender / average
52 ⭐	52 mm	16.5 mm	Average — available at Titanix
54 ⭐	54 mm	17.2 mm	Best-selling size at Titanix
56	56 mm	17.8 mm	Average / slightly wider
57 ⭐	57 mm	18.1 mm	Available at Titanix
58	58 mm	18.5 mm	Wide / average men's ring
60	60 mm	19.1 mm	Wide / men's
62	62 mm	19.7 mm	Wide / men's
64	64 mm	20.4 mm	Wide / large hands

⭐ = available in the Titanix assortment. The European ring size (EU) is equal to the circumference of the finger in millimeters.

❓ Frequently Asked Questions

Which finger is the ring finger?

In the Netherlands, an engagement ring or wedding ring is traditionally worn on the ring finger of the left hand (the finger next to the pinky). A regular fashion ring can be worn on any finger — just make sure to measure that specific finger.

My left and right hands are different sizes — now what?

That's completely normal. The dominant hand (which you use to write) is often slightly larger. Always measure the finger on the hand you intend to wear the ring on.

What if I am between two sizes?

Always choose the larger size. A ring that is slightly too big is more comfortable and can be adjusted by a jeweler. A ring that is too small can be painful and is harder to enlarge.