Sizing Guide

Printable Ring Sizer

This ring size method is based on the inside diameter measurement of a ring that fits the fourth finger of the left hand.

1. Print the the ring size chart. To make sure it's printed to actual size, choose "Scale 100" when selecting your print options.
2. Place the ring over the circles, lining up the inside edges of the ring to the circle that best matches on the ring size chart. If the ring is in between two sizes, choose the larger ring size.

Printable Paper Strip Ring Size

This ring size method uses a tape measure approach with specific ring metrics.

1. Print the ring sizer, making sure that it is printed to actual size.
2. Cut out the ring sizer and open the slot where marked.
3. With the numbers facing out, slip the tip of the ring sizer through the slot.
4. Place the sizer on your ring finger and carefully pull taut to read the finger size.

String Ring Sizer

This ring size method provides a flat measurement tool to be used with a plain piece of string.

1. Print the ring size chart, making sure that it is printed to actual size.
2. Wrap a piece of string around your ring finger and cut it at the point where the end overlaps.
3. Line the string up with the ring size guide provided on the ring size chart. The one that best matches is your ring size. If the ring is in between two sizes, choose the larger ring size.

While each of these ring size methods is fast, convenient and free, there may be accuracy discrepancies due to things such as printer settings or stretch of the string. Consider using more than one ring size method for a “measure twice, cut once" approach to ring sizing. And always use any tools or follow any tips provided on the jeweler's website.

Jeweler's Ring Sizing Tips

Try these ring sizing tricks of the trade to find the perfect fit.

• Go for a snug fit. "As jewelers, we always say the ring should 'go on easy, come off hard,' " Duke says. "This means you have the right fit and the ring is sized properly for the finger, minimizing the risk of loss."
• Keep seasons in mind. "Your fingers tend to change size throughout the course of the year, especially during summer and winter," Kothari says. "They'll swell up a bit during the summer so keep that in mind so the ring doesn't become uncomfortable to wear during those months."
• Consider the width of the band. "The wider the band, the tighter it will fit," says Duke, who recommends going up .25 to .5 size for rings with wider styles.
• Warm up your hands. If you've just come in from the cold or naturally have colder hands, Pomije recommends warming them to room temperature for the most accurate ring sizing.
• Go big. If you get two different finger measurements or find that a ring you wear often fits differently from time to time, Duke says it's best to choose a slightly larger ring size, and, if you can, consult a professional.

How to Measure Ring Size Without Her Knowing

Wondering how to measure ring size withour her knowing? Don't worry! You don't have to ruin a surprise proposal by asking your partner their ring size. Find an insider source who might have the scoop on what ring size she wears. A mom, best friend or sister may know, or can work their magic to find out her ring size without her suspecting a thing.

"Also pay attention to the jewelry she's already wearing," Duke says. "Does she have a ring she loves that fits on her left ring finger or even her middle finger? If so, wait for her to remove it and secretly take it to a jeweler to be sized. If she only takes it off to work out or shower and you have limited access to the ring, buy a bar of soap and press the ring in to make a mold. Your jeweler should be able to use the markings to identify the correct ring size."

If she literally only takes her rings off to lotion her hands for five seconds, slip the ring on your finger and note exactly where it fits on your finger. Using the various ring size charts and sizers, you or a jeweler should be able to replicate the fit.

And when all else fails, go for a larger ring size; it's easier to resize a ring smaller than it is to go bigger.