Bangles come in a range of sizes, so getting the right fit before you buy is important - especially for round bangles without an opening or clasp, which need to slide over your hand onto your wrist. Here are two simple ways to find your size.
Method 1: Measure Your Knuckle Width
This is a simple method for sizing a round bangle:
- Make a fist, keeping your fingers and thumb together as if you were sliding on a bangle.
- Using a ruler or tape measure, measure the width of your hand at its widest point - from the outside of your first knuckle to the point between your third and fourth knuckle.
- This measurement in millimetres is your bangle diameter. For example, if the measurement is 65mm, you need a 65mm bangle.

Method 2: Measure a Bangle You Already Own
If you have a bangle that fits well, measure the inside diameter - the space across the open centre of the bangle, not including the metal. That measurement in millimetres is your size.
Understanding Bangle Size Notation
Bangle sizes are typically written as two numbers - for example, 65x4mm. The first number (65mm) is the inside diameter of the bangle. The second number (4mm) is the width or thickness of the metal band. When buying a bangle, the diameter is the measurement you need to match to your knuckle width.
Bangle Sizing Tips
- If your measurement falls between two sizes, choose the larger size for comfort.
- Solid bangles must slide over your knuckles to reach your wrist, so always measure your knuckle width rather than your wrist.
- Hinged or expandable bangles are more forgiving on sizing as they open to go on, but a proper fit is still important for comfort and security.
- If you're buying a bangle as a gift and don't know the recipient's size, a diameter of 65mm fits most adult women.
FAQ
How do I measure my bangle size at home?
Make a fist and measure the width of your hand at its widest point - from the outside of your first knuckle to between your third and fourth knuckle. That measurement in millimetres is your bangle diameter.
What does 65x4mm mean on a bangle?
The first number (65mm) is the inside diameter of the bangle - the size you need to match to your hand measurement. The second number (4mm) is the width of the metal band.
What size bangle should I buy if I'm between sizes?
Always go up to the larger size. A slightly larger bangle is more comfortable and easier to put on than one that's too tight.
What bangle size fits most women?
A diameter of 65mm fits most adult women's wrists. If you're unsure, 65mm is a safe starting point for gifting.
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