Find Your GoodRings Size

A properly sized ring should feel comfortable throughout the day, slide over your knuckle with slight resistance, and stay securely in place without feeling tight.

For the most dependable result, we recommend using a physical ring sizer or visiting a jeweler. Confirm your size before ordering engraving or another customized option.

Our Recommended Method: Use a Plastic Ring Sizer

A physical ring sizer lets you try several sizes over multiple days before choosing your ring. This is especially helpful because finger size can change with temperature, activity, hydration, and time of day.

For the best result:

• Wear the sizer on the correct finger.
• Test it at different times of day.
• Make sure it passes over your knuckle with slight resistance.
• Choose a fit that feels secure without pinching or leaving a deep indentation.
• If possible, test a sizer similar in width to the ring you intend to purchase. Wider bands can feel tighter than narrow bands.
• Wear your chosen size for several hours to make sure it remains comfortable and secure.

Why Your Finished Ring May Feel Slightly Different

Our plastic sizers provide an accurate physical size reference, but they are much lighter than a finished metal ring. A tungsten ring’s additional weight can make movement or rotation more noticeable, causing it to feel slightly looser even when it is the same measured size.

These differences do not necessarily mean the ring is the wrong size. Your finished ring should pass over the knuckle with slight resistance and remain comfortably in place during normal wear. Do not automatically order a smaller size solely because you are purchasing tungsten.

If you are between sizes or have a noticeably larger knuckle, contact us with the ring you are considering and the sizes you tested. We’ll help you choose the best fit.

Buy Plastic Ring Sizer

Get Professionally Sized by a Jeweler

A local jeweler can help determine your US ring size using physical sizing rings. Ask to be measured on the same finger on which you will wear your GoodRing.

Tell the jeweler the approximate width of the ring you plan to purchase. Wider bands may require a slightly larger size than narrow bands, and comfort-fit interiors can feel different from traditional flat interiors.

Ask the jeweler to write down:

• Your US ring size

• The width of the sizing ring used

• Whether the sizing ring had a standard or comfort-fit interior

We recommend relying on a physical try-on size instead of converting an approximate finger measurement.

Download Our Printable Ring Sizer

Our printable PDF provides a convenient preliminary estimate when a physical sizer or jeweler is unavailable.

Print the document at 100% or Actual Size—not “Fit to Page”—and verify the printed calibration mark with a ruler before measuring.

Printable tools are more susceptible to printing, cutting, and placement errors. Do not rely on the PDF alone when ordering an engraved or customized ring. Confirm the result with a plastic sizer or professional fitting first.

Download Paper Ring Sizer

Measuring a Ring You Already Own

If you have a ring that already fits the intended finger, measure its inside diameter across the widest point of the opening. Do not include the ring’s metal edges.

A ruler can provide a rough estimate, but small differences matter. Digital calipers are more accurate. Compare the measurement with the inside-diameter column in our US ring-size chart.

Make sure the existing ring:

• Fits the intended finger properly

• Is reasonably round

• Has a width similar to the ring you are purchasing

• Is measured across its true center

GoodRings Size Chart

Use the chart below to compare US ring sizes with the corresponding inside diameter and inside circumference.

The measurements describe the inside of a finished ring, not the width of your finger.

 ring size chart

What If I’m Between Sizes?

If you are between two sizes, consider the width of the ring, the size of your knuckle, and whether your fingers tend to swell.

A wider band usually feels tighter than a narrow band. If you are uncertain, contact us before ordering and tell us:

• The ring you are considering

• Your measured size or inside diameter

• The sizing method you used

• Whether your knuckle is wider than the base of your finger

We’ll help you choose the most appropriate option.

Need Help?

Choosing the right size can feel confusing, and we’re happy to help. Contact GoodRings before ordering if your measurements conflict or you are unsure which size to select.