How to Measure Ring Sizes

Knowing how to measure ring sizes can help you find the perfect fit for an engagement or wedding ring. Ensuring the ring can fit is critical for a romantic proposal, and a ring that is the right size will be able to be worn comfortably for many happy anniversaries.

Ring sizes can be measured in different ways.

Getting the right ring size is crucial for several reasons. Even the most romantic, beautiful engagement ring won’t be as stunning if it does not fit, especially if it will need to be returned to the store for several days to be resized. Furthermore, many engagement ring designs such as eternity rings, filigree engagement rings, and pave setting engagement rings cannot be easily resized and may need to be reordered if the size is incorrect, which can be disastrous for an engagement ring budget.

There are several ways to measure ring size accurately.

• Trying on Rings: Most jewelers stock rings in a small range of sizes, usually from size 5 to size 7. Trying on several rings while examining different styles can help you find your ring size or at least determine if your finger is larger or smaller than average.
• Sizing Tools: Jewelers may have a variety of ring size tools that can measure sizes easily. One is a graduated set of standard sizes that can be tried on the finger to find the best fit. Another type of tool is a sliding ruler that an existing ring is placed over to judge its size. Any jeweler would be happy to help you find your ring size without charge.
• Printable Ring Size Chart: A printable chart can explain how to measure ring sizes without any sales pressure or awkward questions. Different types of charts can be wrapped around the finger, compared to existing rings, or used to convert length measurements for suitable ring sizes.
• Ring or Finger Circumference: Measuring the circumference of a ring or ring finger can help convert a simple measurement into a standard ring size. A narrow strip of paper or piece of string can be used around a finger, while a ring could be rolled along a measuring strip or wrapped with paper. When measuring a ring, however, be sure to note whether the measurements are for the interior or exterior circumference and convert the numbers to the proper sizes.

If you are planning a surprise proposal and want to find out the ring size in secret, the best way to do so is to find a ring that fits comfortably and have a jeweler determine its size with a slide tool, or use ring size charts to compare the ring to sizing circles. If that is not possible, however, try the ring on your own finger for a moment to feel how loose or tight it is and where it stops on your finger, then compare that feeling to a jeweler’s graduated tool. When in doubt, choose a slightly larger ring size because it is far easier to lower a ring’s size than to add metal to make it larger.

Jeweler's graduated sizer.

To get the best ring size measurement for a comfortable, accurate fit:

• Measure the appropriate finger. The left and right ring fingers may not be the same size.
• Measure the size in several ways. A variety of measurements can be averaged for the best size, rather than risking one inaccurate measurement.
• Choose a comfortable size that can fit easily over knuckles.
• Do not trust a size printed on the ring or in a certificate, particularly for an antique engagement ring. Different manufacturers use slightly different size conversions, and one company’s size may be different than another.
• If measuring a finger, do so when the hand is at room temperature. Extreme heat or cold can change ring sizes and result in poor measurements.
• Ask about resizing costs and policies before purchasing the ring. Some jewelers offer protection plans for a nominal fee that will cover resizing costs for many years.

Knowing how to measure ring sizes can help you find the perfect fit for the perfect ring on the perfect finger, and knowing your bride-to-be’s or wife’s ring size is a way to show her just how much you care about making the moment perfect for her.

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