How to measure your ring size at home

Method 1: measure a ring that fits

Lay a ring that fits the same finger on a ruler and measure the inside diameter in millimeters, across the widest point inside the band. Enter it in the size helper.

Method 2: paper strip

1. Cut a thin strip of paper.
2. Wrap it snugly around the base of the finger.
3. Mark where it overlaps, then measure the length in millimeters.
4. Enter it as circumference in the size helper.

Make sure the strip can slide over your knuckle. If it cannot, measure the knuckle too and use the larger number.

Method 3: a printable or plastic sizer

Plastic ring sizers are inexpensive and more accurate than paper. Printable sizers only work if printed at exactly 100 percent scale.

Common mistakes

• Measuring cold fingers in the morning, when they are smaller.
• Pulling the paper too tight or too loose.
• Measuring the wrong finger or hand. Sizes often differ.
• Ignoring band width. Wide bands usually fit tighter.

When to see a jeweler

For an engagement ring, an expensive purchase or any ring that will be resized, ask a jeweler to size you with metal sizers. Many will do it for free.