Find Your
Ring Size
Find your perfect ring size at home in minutes. Try our true-to-size visualizer, instant converter and printable sizer — so every ring fits flawlessly, the first time.
See your size, true to life
Drag the dial to preview a ring at its real on-screen size, or use the converter for an exact US / UK / EU match.
True-to-size preview
Hold a ring to your screen and line up its inside edge with the bright circle. The diamond marks the top of the ring.
Calibrate to your screen for accuracy
Hold a standard card (credit/ID) against the bar and drag until the widths match. We’ll size the preview precisely.
Standard card width = 85.6 mm
Enter a circumference of 30–80 mm (about 1.2–3.1 in).
Enter a diameter of 10–26 mm (about 0.4–1.0 in).
Your size is approximately — (US).
Between two sizes? Size up — especially for wider bands. Your result updates the true-to-size preview on the left automatically.
Measure at day’s end
Hands are warmest and largest later in the day — avoid measuring when cold or post-workout.
Mind the knuckle
If your knuckle is larger than your finger base, size to slide over it comfortably while still feeling secure.
Wider bands fit snugger
For bands 6 mm or wider, size up a quarter to half size.
Measure more than once
Take three readings on different days and use the average.
Match the finger
Every finger differs — size the exact one the ring will live on.
Not sure — or shopping a surprise?
Shopping a surprise?
Most styles are resizable — and a gift card is the perfect no-pressure backup if you’re unsure of size.
Give a gift cardTalk to a concierge
Real jewelers, seven days a week, to help you get the fit exactly right.
Book a consultHow to measure at home
No tools on hand? You only need a ring you own, or a strip of paper and a ruler.
Measure a ring you own
Take a ring that already fits the right finger and measure straight across the inside in millimeters. Enter that diameter in the studio — the most accurate at-home method.
The string method
Wrap a thin strip of paper or string snugly around the base of your finger. Mark the overlap, lay it flat on a ruler, and measure the length in millimeters.
Print our sizer
Download the Amorati printable ring sizer, print at 100% (no scaling), and match a ring to the circles or wrap the cut-out strip around your finger.
Ring size chart
Match your finger’s diameter or circumference in millimeters to your US ring size.
| US / Canada | Inside Diameter (mm) | Inside Diameter (in) |
|---|
Need a size outside this range? Our concierge can help with US 3–13.5+.
Ring sizing FAQs
Reviewed by the Amorati jewelry team. This guide reflects standard GIA/ISO sizing references and the at-home methods our concierge uses every day. Sizing is approximate; for high-value or non-resizable styles, confirm with a professional or request our complimentary at-home sizer before ordering. Questions? Call 844-474-7417.
Free resizing help
Most styles are resizable. Unsure of fit? We’ll guide you before you buy.
Free shipping & returns
If the fit isn’t right, returns are always free and easy.
Concierge sizing
Personal guidance from real jewelers, seven days a week.
Found your size?
Explore engagement rings, wedding bands and everyday pieces crafted to the Amorati Standard — premium stones and solid metals, never as extras.