How to measure your ring size at home (without a ring sizer)?

Last updated: May 19, 2026 | Maison de l'Amour

QUICK SUMMARY:

Don't know your ring size? No worries. You can easily measure your finger at home using a simple piece of string (or a paper strip) and a ruler. The length in millimeters will correspond to your size (e.g., 52 mm = size 52). But for absolute comfort, especially in summer when fingers swell, the safest solution is to choose an adjustable stainless steel ring.

1. The Stress of Online Shopping

You're browsing our store, you fall in love with a golden ring, and when you go to add it to your cart... doubt creeps in. "Am I a size 50, 52, or 54?"

Buying a classic (closed) ring online can be stressful. If it's too small, it will pinch and restrict circulation. If it's too large, it might slip off and get lost. Fortunately, you don't need to run to a jeweler to find out your size.

Woman's hands measuring her ring size with a white string and a ruler

A simple piece of string is all you need to determine your exact size.

2. The String Trick (The Simple Method)

Here's the most reliable method to measure your circumference at home in just 3 minutes.

What you'll need:

A piece of string (or a thin strip of paper), a pen, and a ruler.

The 3 steps:

Wrap the string around the finger you want to wear the ring on. Warning: Don't pull too tight! The string should be able to pass over the widest joint of your finger.
With the pen, make a small mark where the string overlaps.
Unwrap the string and measure the distance between the end and the mark with your ruler, in millimeters.

The result:

It's very simple: The distance in millimeters = Your French size.
If you measure 52 mm, your size is 52. If you measure 54 mm, it's a 54. If you fall between two sizes (e.g., 53 mm), always choose the next size up (54).

3. The Summer Trap: Why Your Measurements Will Be Off

Now that you have your size, you're ready to order. But beware! There's a crucial detail to consider, especially as the warm season approaches.

Your fingers aren't "static." They swell with heat, humidity, physical exertion, or even when you wake up in the morning. A size 52 that fits perfectly in January might cut off your circulation in the middle of July on the beach. Conversely, in winter, cold constricts blood vessels, and the ring can become too loose.

Close-up of the back opening of an adjustable golden Maison de l'Amour ring

4. The Magic Solution: The Adjustable Ring (And why ours won't break)

To spare you this stress and discomfort, Maison de l'Amour has chosen to offer a vast collection of adjustable (open) rings.

They offer 3 major advantages:

Absolute comfort: You widen it by a millimeter when it's hot, you tighten it in the evening. It adapts to your body, not the other way around.
Zero error for gifting: It's the perfect gift, because you don't need to investigate to find out your friend's size.
Style freedom: You can wear it on your ring finger on Monday, widen it to wear it on your middle finger on Tuesday, and move it to your thumb on the weekend!

"But won't it break?"
No! Adjustable rings that break in two are usually made of low-quality brass. Our rings are forged from stainless steel. This metal is incredibly robust while maintaining a "shape memory" that allows it to bend slightly without ever breaking.