Ring Size
Gems n Jocales
Virtual Ring Sizer
Measure your ring size in 2 minutes — directly on your screen. No printing, no guessing.
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Calibrate2
Measure3
Your Size📐 Calibrate Your Screen
Every screen is different. Place a physical credit card, debit card, or ID card against the card below and drag the slider until they match exactly in size. This ensures real-world accuracy.
Standard Card
85.60 × 53.98 mm
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How to calibrate: Hold any credit card, debit card, or national ID card flat against the screen. Use the slider to make the on-screen card exactly the same size as your physical card — edges should line up perfectly.
💍 Place Your Ring on Screen
Lay a ring that fits you well flat on your screen, centering it over the circle. Use the slider to grow or shrink the circle until its edge lines up with the inner edge of your ring band.
✔ Screen calibrated
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US Ring Size
Adjust the slider below
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Tip: Match the circle to the inside edge of the ring band — not the outside. Lay the ring flat and look straight down for the most accurate reading.
✨ Your Ring Size
Based on your measurement, here are your results. We recommend confirming with a second reading if you’re between sizes.
US Size
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Diameter
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Circumference
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Nearest Sizes
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If you fall between two sizes, always choose the larger one for comfort. Rings can always be tightened with a ring adjuster.
Closest Matches from Our Chart
| Size | Diameter (mm) | Diameter (cm) |
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