How to Measure Ring Size at Home

Finding the right ring size should never be a guessing game. At K. Hollis Jewelers in Batavia, IL, we make it simple to find the perfect fit whether you are planning a proposal, choosing a right hand ring, or surprising someone special.

The most accurate way to know your size is to stop by our Batavia showroom and let one of our staff members measure it for you. If you can’t make it in, no worries. With a piece of string, a printable guide, or a plastic ring sizer, you can get a confident measurement at home in just a few minutes.

Measure Ring Size with a String

This easy method only needs a piece of string, a ruler, and a few minutes.

1. Wrap a string around the base of the finger where you will wear the ring. Make it snug but not tight so it mimics the feel of a real ring.

2. Mark the spot where the string overlaps with a fine marker.

3. Lay the string flat and measure the length in millimeters from the start to your mark.

4. Compare that measurement to a ring size chart to find the closest match.

Pro tip: Try this at the end of the day when fingers are naturally a bit larger. That helps avoid choosing a size that will feel too tight later.

Use a Printable Ring Size Chart

Download and print the Ring Chart and Sizer Guide on standard US letter size paper at 100 percent scale. Check the printed guide against a ruler to make sure it printed correctly.

Printable Ring Chart and Sizer.pdf

Download PDF • 133KB

Option 1: Measuring Tape Method

1. Cut along the measuring tape outline and make a small slit at the dotted line.

2. Insert the numbered end through the slit to form a loop.

3. Place the loop around the base of your finger with the numbers facing out.

4. Pull the tape until it is snug but comfortable. The number aligned with the slit is your ring size.

Pro tip: For wide bands over 10 millimeters, add a half size. If you normally wear a size 6, consider a 6.5 for a wider band.

Option 2: Match an Existing Ring

1. Use the printed chart that includes actual size circles.

2. Place the ring on each circle until the inner edge of the ring lines up exactly with the circle’s outer line.

3. If the ring falls between two sizes, choose the larger size for comfort.

Measure with a Ring Sizer Tool

For a more accurate measurement, try a plastic adjustable ring sizer. It is a low cost, reusable option that works like a belt. It is especially helpful when you are between sizes or buy rings often.

How to use it:

1. Insert the pointed end through the buckle to form a loop.

2. Slip it over your finger and tighten gradually until it feels snug but comfortable.

3. Make sure it slides over the knuckle with slight resistance and is not pinching.

4. Read the number where the sizer meets the buckle. That is your ring size.

Ring Sizing Tips for a Perfect Fit

You'll know you have the right size if your ring moves naturally with your hand, stays in place, and feels comfortable. Follow these tips to get the best fit.

Measure more than once

Finger size changes with the time of day, temperature, and hydration. Measure your finger at different times for a few days to get consistent results, especially if you are between sizes.

Account for band width

Wider bands will feel more snug. If you want a thicker style, consider sizing up by a quarter or half size.

Avoid measuring when fingers are swollen

Heat and activity can cause swelling, and cold can make fingers smaller. Don’t measure right after exercise, a hot shower, or long sun exposure.

Don’t guess someone else’s size

If you’re planning a surprise, discreetly borrow a ring they already wear on the correct finger and compare it to a printable chart. Or bring that ring to K. Hollis Jewelers for an accurate measurement. That way you avoid guessing and costly resizing, while keeping the gift a secret.

Ring Sizing FAQs

What's the best time of day to measure my ring size? 

Measure in the afternoon or evening when fingers are naturally a bit larger. Avoid measuring when your hands are very cold or visibly swollen, since that can give you an inaccurate size.

How do I know if my ring fits properly? 

A correct fit slides over your knuckle with slight resistance and sits snugly on the finger without pinching. It should feel secure but comfortable, not too tight or too loose.

Can all rings be resized? 

Gold, platinum, and silver rings can usually be resized. Materials like titanium, tungsten, and ceramic are difficult or impossible to resize. Rings with stones set all the way around the band may have limits on how much they can be resized and may require special techniques.

How can I know someone's ring size for a surprise gift? 

Borrow a ring they already wear on the correct finger and bring it to K. Hollis Jewelers for a discreet measurement, or compare it to a printable size chart. If you must guess, common stock sizes are about 6.5 for women and 10 for men, but keep in mind that rings with stones around the band can be hard to resize beyond one size.

Do ring sizes vary from country to country? 

Yes. Different countries use different sizing systems. For example, the U.S. uses numbers while the U.K. uses letters. Use a conversion chart when shopping internationally.

What should I do if my finger size changes over time? 

If your finger size shifts because of weight, temperature, or other factors, a jeweler can usually resize your ring. Many rings can be adjusted one or two sizes without stressing the metal. There are also alternatives like sizing beads. Talk with your jeweler to find the best solution for your piece.