Whether you’re gearing up to buy an engagement ring, or a promise ring, or interested in resizing a family heirloom. It can be tough to move the ball forward on any ring-related shopping endeavor without knowing your ring size. However, you could always make a trip to your local jeweler for sizing. There is a bevy of simple ways to measure your ring size at home with tools you may already have. To ensure that the next ring you purchase fits beautifully, take a look at the following tips.

How to measure ring size with a string

It’s possible to measure ring size using an everyday piece of string or even floss. Cut floss, and wrap it around the intended ring finger to prepare for wearing the ring. With a pen, create a mark where the material initially overlaps. Unwind the string from your finger and lay it out flat where it can be measured. Measure the finger in mm, and match the length with the chart to determine the corresponding ring size accurately.

How to measure ring size with a tape measure

Using a tape measure will get you an especially accurate read on ring size. Just, take a measuring tape and wrap it around the base of the ring finger that you plan to wear the ring on. You’ll also want to be sure that you haven’t wrapped it too tightly or loosely. For example, it’s too loose if the tape measure can slip past your knuckle. Then, take note of the number of millimeters where the tape overlaps on your finger, and compare it to the ring sizes on the chart.

How to measure ring size with a ring sizer

To determine your ring size accurately, you will need a special tool called a ring sizer. There are two types of ring sizers: tape-style sizers and metal loop-style sizers. The tape-style sizers look like specialized measuring tapes and wrap around your finger to give you the appropriate ring size. On the other hand, the metal loop-style sizers consist of small metal loops on a keychain-like structure that you push your finger through to find the best fit. You can find these tools easily on Amazon.

How to measure ring size with a ring size chart

If you have a ring that fits you well, you can use it to measure your ring size. Many downloadable and printable ring charts (such as the one from Kay Jewelers) are available online that illustrate different ring sizes. Simply hold your existing ring up to each size on the chart until you find a match, and voila! You have your ring size.

Other ways to find the ring size

If you don’t have a string or tape measure to determine your ring size, there are other options available. You can print out a ring sizer from websites like Blue Nile, buy an inexpensive ring sizer on Amazon, or visit a local jeweler. A jeweler can use a metal ring sizer to accurately determine your ring size.

Ring size guide

When determining your ring size, it’s important to keep in mind that standard U.S. ring sizes range from 3 to 13.5. Generally, women’s ring sizes fall between 5 and 7, while men’s ring sizes range from 8 to 14, with the average being between 10 and 11. The size of a ring is determined by the width of your finger in millimeters. For example, a size 3 ring should fit a finger that measures 14 millimeters, and every half-size increase from there corresponds to a 0.4-millimeter increase in finger width.

Ring sizing tips

Consider the following must-knows ahead of diving into ring sizing.

1. Measure more than once.

You should measure your finger three times to ensure accuracy.

2. Use materials that don’t stretch.

For an accurate measurement of your ring size, it is recommended to avoid using stretchable materials such as rubber bands or hair ties. These materials are not reliable and may provide incorrect measurements. It is best to use non-elastic materials like twine, floss, ribbon, or similar materials that will give you a precise measurement.

3. Place the measuring tape, string, or any material where you want to wear your ring.

Make sure to wrap the measuring material precisely where you want the ring to sit on your finger to obtain an accurate measurement of your ring size.

4. Consider the time of day you’re measuring.

It’s best to measure your ring finger around midday instead of first thing in the morning, as fingers often swell overnight.

5. Don’t measure your finger post-workout or shoveling snow.

It may seem obvious, but engaging in certain activities such as running, taking a hot shower, or being exposed to cold temperatures can cause fingers to either swell or contract. As a result, this can affect the accuracy of measuring one’s ring size.

Tips for buying a ring as a surprise

If you want to surprise your partner with a beautiful engagement ring or another stunning gift that they can flaunt on their finger, it’s important to measure their ring size discreetly.

Ask friends and family to pitch in.

See if your significant other’s closest friend, sibling, or parent can weigh in on their ring size. If they don’t know it, they could potentially suggest trying on rings for fun and sneak sizing into the agenda.

Use other jewelry to gauge size.

If you can easily borrow a ring that currently fits your partner, you can use it to size your finger by comparing it to the sizes on a downloadable ring chart or taking it to a jeweler.

Be prepared to resize.

When in doubt, you can always guess your partner’s ring size, erring on the larger side. If it is too big, your local jeweler can resize it easily, whereas if it is too small, adding more metal to size up will be a bit more difficult—and potentially pricier.

How to measure a man’s ring size

You can measure a man’s ring size the same way as any other—however, just note that you’re using the right ring size chart, as men’s rings offer higher numbered sizes. Use one of the aforementioned measurement guidelines and you’re ready to go.

Should you choose carat size based on ring size?

When choosing the carat weight of a diamond or gemstone ring, you may want to take your own or your partner’s ring size under consideration. In general, the smaller your ring size, the larger any stone will appear. For example, if your significant other’s ring finger is a size 4.5, a 1.5-carat stone will look larger than if her ring was a size 6.5.

But other factors might be even more important than ring size when deciding on diamond or gemstone size. For instance, think about the ring wearer’s style and lifestyle. Perhaps, if they’re more active and tend to not wear jewelry daily, a smaller stone is a better bet, whereas if they have an extensive jewelry collection, they might appreciate a larger stone.

What if the ring size is wrong?

“If you purchase a ring that doesn’t fit well, you can always get it resized by a professional jeweler. If you’re unsure about the right size, it’s better to choose a larger size as it can be resized later. It’s always easier and more cost-effective to resize a ring from a larger size to a smaller one.” The average ring size for women is between a size 5 and a size 7. The average ring size for men is between a size 10 and a size 11.

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