Ring Size Calculator & Ring Size Chart

Find Your Ring Size Before Buying an Engagement Ring

Choosing the right ring size is one of the most important steps when shopping for an engagement ring online. A ring should feel secure, comfortable, and easy to wear every day. Our ring size chart and calculator are designed to help you estimate your US, Canada, EU, and UK ring size using either finger circumference or the inner diameter of an existing ring.

Whether you are buying a surprise engagement ring or confirming your own size before visiting our Vancouver showroom, this guide can help you better understand how ring sizing works and which measurement method may be best for you.

How Ring Sizes Work in Canada

Ring sizes in Canada generally follow the same scale used in the United States. This means that a US size 7 is also commonly considered a Canada size 7. However, many international jewellery brands also use EU or UK sizing, which is why a ring size conversion chart can be helpful when comparing different rings.

Our calculator shows US/Canada, EU, UK, diameter, and circumference measurements together, making it easier to compare sizes across different systems.

Measure Ring Size by Finger Circumference

Finger circumference is one of the easiest ways to estimate ring size at home. Wrap a thin strip of paper or string around the finger, mark where the ends meet, and measure the length in millimetres. Enter that measurement into the calculator to find the closest ring size.

For the most accurate result, measure your finger at the end of the day when your hands are at a normal temperature. Fingers can be slightly smaller in cold weather and slightly larger in warm conditions.

Measure Ring Size by Ring Diameter

If you already own a ring that fits well, you can measure the inner diameter of that ring. Place the ring on a ruler and measure across the inside edge from one side to the other in millimetres. Then enter the diameter into the calculator to estimate the matching US/Canada, EU, and UK ring size.

This method is especially useful when buying a surprise engagement ring, as long as the existing ring fits the same finger.

Engagement Ring Size Tips

Ring size can vary slightly depending on the ring style, band width, season, and time of day. Wider bands may feel tighter than thin bands, so some clients prefer to size up slightly for wider engagement ring designs.

If your measurement falls between two sizes, it is usually safer to choose the larger size or speak with a jewellery specialist before placing an order. For custom engagement rings, confirming the correct size before production can help ensure a more comfortable fit.

Need Help Choosing the Right Ring Size?

Our team can help you confirm your ring size, compare engagement ring styles, and choose the right diamond and setting. If you are unsure about your measurement, we recommend booking an appointment with Luxury Diamonds for professional guidance.