This guide provides practical tips to help you determine your perfect ring size, including instructions on using various measuring methods and navigating international sizes.

Option 1. Measure with a soft tape or a piece of string.

An easy way to determine your ring size is by measuring the circumference of your finger. Just follow these steps:

• Use a flexible measuring tape or a thin piece of string.

• Wrap it around the finger you want to wear your ring on.

• Mark the point where the ends meet.

• Measure the marked length with a ruler.

• Check your measurement against our ring size chart to find the right diameter and size. Not sure between two sizes? Choose the larger one! This ensures your ring won’t fit too tightly.

Tip: Measure your finger at the end of the day and at room temperature. Fingers tend to be slimmer in the morning or when it’s cold.

Option 2. Measure an existing ring with a ruler.

If you already own a ring that fits perfectly, this is one of the easiest methods:

• Place the ring flat on a hard surface.
  
  
• Measure the inside diameter with a ruler, from edge to edge.
  
  
• Use our chart to convert the diameter into the correct size.

Option 3. Understanding international ring sizes.

Ring sizes differ from country to country. If you’re buying a ring abroad or as a gift for someone overseas, it helps to know the international systems. Here are the key ones:

Switzerland: Sizes range from 1 to 30 (measured by circumference in mm).
France / Germany: Sizes run between 41 and 76 (circumference in mm).
United Kingdom: Sizes are indicated with letters (A-Z).
United States & Canada: Sizes range from 1 to 16, based on diameter or circumference.
Asia (Japan): Sizes run from 1 to 27, based on diameter.

What Is the Average Ring Size for Women?

The average woman’s ring size falls between 52 and 54. This may vary depending on hand shape and personal preference, because the perfect size is always the one that feels made for you.