How Do I Find Out My Girlfriend's Ring Size?

Finding out your girlfriend's ring size can feel like a daunting task, especially if you're planning a surprise proposal or a special gift. The last thing you want is to spoil the surprise by asking her directly or ending up with a ring that doesn't fit. Luckily, there are several clever and discreet ways to determine her ring size without raising suspicion. Whether you're shopping for a stunning engagement ring, a timeless wedding band, or a beautiful anniversary ring, these tips will help you get it right the first time.

One of the easiest ways to find her ring size is to borrow one of her existing rings. Pay attention to the rings she wears on her ring finger, as sizing can vary between fingers. If she doesn't wear rings often, consider enlisting the help of her friends or family members—they might know her size or be able to discreetly find out for you. Another option is to trace the inner circumference of one of her rings on a piece of paper or use a ring sizer tool, which you can easily find online or at a local jeweler like Robinson's Jewelers.

1. Borrow One of Her Rings

If your girlfriend already wears rings, this is one of the simplest methods. Sneak one of her rings (preferably from her ring finger) and take it to a jeweler to determine the size. If you can't take the ring, press it into a bar of soap or a piece of clay to create an impression, or trace the inner circle on paper. Just make sure it's a ring she wears on the correct finger, as sizes can differ between fingers.

2. Ask Her Friends or Family

Her closest friends or family members might already know her ring size or can help you find out without spoiling the surprise. They could casually bring up the topic in conversation or even suggest trying on rings together for fun. This method works especially well if your girlfriend has mentioned her ring size in the past or has shopped for rings with them.

3. Measure Her Finger While She's Asleep

For a truly surprise proposal, you can carefully measure her finger while she's asleep using a piece of string or a strip of paper. Wrap it around her ring finger, mark the spot where it overlaps, and then measure the length with a ruler. Compare this measurement to a ring size chart, which you can find online or at Robinson's Jewelers. Be gentle to avoid waking her, and consider doing a test run first to ensure accuracy.

4. Use a Ring Sizer Tool

Many jewelry stores, including ours, offer free ring sizers that you can use at home. These tools are discreet and easy to use—simply slide the ring sizer onto her finger while she's distracted or borrow one of her rings to measure. If you're unsure, our experts at Robinson's Jewelers can help you interpret the measurements and recommend the perfect engagement ring or wedding band.

5. Guess Based on Her Height and Build

While not foolproof, you can make an educated guess based on her general physique. On average, most women wear a ring size between 6 and 7. If she has smaller hands or a petite frame, she might be a size 5 or 6. If she’s taller or has broader hands, she could be a size 7 or 8. If you go this route, consider choosing a ring with a adjustable band or opt for a resizing option after the proposal.

6. Compare Her Hand to Yours

If you're around the same size, you can estimate her ring size by comparing her fingers to yours. For example, if her ring finger is slightly smaller than your pinky, she might be a size 6 or 7. This method isn't exact, but it can give you a rough idea if you're in a pinch.

7. Check Her Jewelry Box

If she has a collection of rings, look for any that might be labeled with a size. Some women keep the original packaging or tags, which often include sizing information. Alternatively, if she has a stackable ring set, you can use one of those as a reference.

8. Propose with a Temporary Ring

If you're worried about getting the size wrong, consider proposing with a beautiful eternity band or a solitaire pendant instead, then shop for the perfect ring together afterward. This takes the pressure off and ensures she gets exactly what she wants.

Final Thoughts

Determining your girlfriend's ring size doesn't have to be stressful. With a little creativity and these helpful tips, you can find the perfect fit for that special engagement ring or wedding band. And if you're still unsure, the team at Robinson's Jewelers is here to help you every step of the way. From classic halo rings to elegant emerald-cut diamonds, we have the perfect piece to make your proposal unforgettable.