Yaa Asamoah
💍

Find Your
Ring Size

Works on any phone · Any country · 2 minutes

Choose your method
💡 Best time to measure: evenings, when fingers are at their largest. Between two sizes? Always choose the larger for comfort.
Yaa Asamoah
Step 1 of 2 — Calibrate Screen

Align Your Card

Put the short side of your card here and adjust the slider until the bottom edge lines up.
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Any card works: bank card, Oyster card, loyalty card, driving licence

Yaa Asamoah
Coin Method — Step 1 of 2

Choose Your Coin

Select the coin you have with you

25¢

🇺🇸 US Quarter

Silver · George Washington · 24.26mm

2p

🇬🇧 UK 2p Coin

Large copper coin · 25.9mm

1p

🇬🇧 UK 1p Coin

Small copper penny · 20.32mm

🇺🇸 US Nickel

Thick silver · Thomas Jefferson · 21.21mm

10¢

🇺🇸 US Dime

Small silver · Franklin Roosevelt · 17.91mm

Yaa Asamoah
Coin Method — Step 2 of 2

Match the Circle

Place coin on circle ↓
25¢
— mm
Place your coin flat on the circle. Looking straight down, drag until the circle edge matches your coin exactly on all sides.
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Yaa Asamoah
Step 2 of 2 — Measure Ring

Place Ring on Screen

Lay your ring flat on the screen. Drag until the orange circle lines up with the inside edge of your ring band.
16.5 mm diameter
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Your Ring Sizes
6
US size · 16.5mm diameter
🇬🇧 UK / Australia
L
🇪🇺 Europe
52
📏 Diameter
16.5 mm
📐 Circumference
51.8 mm
Before You Order
  • Measure in the evening — fingers swell slightly during the day.
  • Between two sizes? Always choose the larger for comfort.
  • For wide bands (4mm+), size up by half a size.
  • YAA ASAMOAH pieces available in sizes 5–9. Contact us for sizes outside this range.
  • Changed phones? Re-calibrate before measuring again.