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How to Measure Ring Size at Home
Unsure about your ring size? These simple at-home methods will help you find your perfect fit.
Method 1: Use a Free Ring Sizer
A physical ring sizer is the most reliable way to measure your ring size at home. Request a free, unisex plastic ring sizer from Brilliant Earth to easily find your perfect fit.
Our plastic ring sizer provides an accurate, reusable way to measure your finger before purchasing. It’s designed to mimic the feel of an actual ring, giving you a true sense of how each size will fit on your hand. All you have to do is wrap our sizer around the finger you'd like to measure and adjust it to the size that feels right. The perfect size will be snug enough not to slip off but loose enough to slide over the knuckle without too much resistance.
Method 2: Use a Printable Ring Sizer
Need to find your ring size ASAP? You can download our printable ring sizer for a quick, at-home measurement. This option is helpful if you need your ring size right away, though we always recommend using our free plastic ring sizer or visiting a Brilliant Earth showroom for the most accurate results.
What you'll need:
- Printer & paper
- Scissors
Steps:
- Print a Printable Ring Sizer & Conversion Chart. Set page scaling to "100" in your print settings and use 8.5 x 11-inch standard paper.
- Cut out the sizer. Follow the provided guidelines to carefully cut out the paper ring sizer and the slot as instructed.
- Wrap it around your finger. Slide the pointed end through the slit and gently pull until the ring sizer fits snugly around the base of your finger.
- Read your size. The number visible through the slit corresponds to your ring size.
Method 3: Use a Ring You Already Have
If you already own a ring that fits the intended finger, you can use it to determine your ring size.
What you'll need:
- Printer & paper
- An existing ring
Steps:
- Print a Printable Ring Sizer & Conversion Chart. Set page scaling to "100" in your print settings and use 8.5 x 11-inch standard paper.
- Select a well-fitting ring. Use a ring that comfortably slides on and off the finger you’re measuring.
- Match the ring to the chart. Place the ring directly over the printed circles until the inside edge aligns perfectly with one of the circle outlines.
- Check the alignment carefully. You should be able to see the circle just touching the inside edge of the ring without any overlap.
- Confirm the size. The number in the matching circle represents your ring size.
Method 4: Use a Tape Measure
Using a flexible tape measure allows you to calculate the circumference of your finger directly to determine your ring size.
What you'll need:
- A flexible tape measure
Steps:
- Wrap the tape measure around your finger. Choose the finger you plan to wear the ring on and gently wrap a flexible measuring tape around the base of the finger.
- Note the millimeter or inch measurement. Record the point where the tape overlaps, ensuring it’s snug but not tight. A ring should slide comfortably over the knuckle and rest securely at the base of the finger.
- Convert to ring size. Use a ring size conversion chart to match your finger’s circumference measurement to the corresponding ring size.
If you don’t have a tape measure:
- Use string, yarn, floss, or a thin strip of paper.
- Wrap it around your finger as described above and mark where it overlaps.
- Lay it flat and measure the length with a ruler, then compare the measurement to a ring size chart.
Ring Size Measurement Tips
These considerations will help ensure the most comfortable and reliable fit.
- Measure the Hand You’ll Wear the Ring On: Our dominant hands are generally slightly larger. Always measure the hand and finger you plan to wear the ring on, as even a small size difference can affect fit.
- Consider the Width of the Ring: Rings with wider bands fit more tightly than thinner ones. Plan to size up by at least a half size for chunky bands (>4mm) and size down accordingly for very thin designs (<1.3mm). Note that ring sizes are generally measured in millimeters (mm) and are not sized by inch.
- Account for Temperature: Temperature affects finger size, fingers shrink when cold and expand when warm. Take measurements when your hands are at a normal, comfortable temperature to avoid inaccurate sizing.
- Measure at the Right Time of Day: Fingers naturally change size throughout the day based on activity, hydration, and diet. The best time to measure is toward the middle or end of the day, when your fingers are at their largest.
- Test for Comfort: If your knuckle is more prominent than the base of your finger, measure both areas. Then, choose a size in between those measurements as rings need to fit over the knuckle but not be too loose or too tight to wear comfortably.
- Measure More Than Once: Finger size can fluctuate slightly throughout the day or week, so it’s helpful to measure multiple times. Taking two or three measurements and comparing them will give you a more accurate average.
- Err on the Side of Caution: If you're in between ring sizes, we suggest sizing up rather than sizing down. When in doubt, rings can be resized down more easily than up!
Brilliant Earth Ring Resizing Policy
Brilliant Earth is proud to be one of the only jewelry brands to offer inclusive sizing across our entire assortment of engagement rings, wedding bands, and fashion rings.
Our commitment to you extends beyond delivery, and we're proud to offer free 30-day exchanges and free 1-year resizes to ensure that you can find the perfect fit. Most designs (even an eternity, open, or alternative metal style) can be exchanged for any new size within 30 days free of charge, while any resizable design can be resized within 1 year free of charge.
If you need a different size, contact us to begin the complimentary resize process within 1 year of your order’s initial shipping or when your ring becomes available for pick up in the showroom. We'll confirm a new size with you and resize your ring free of charge. Please note that certain restrictions apply.
