Ring Sizer tool

Find Your Ring Size Using a Ring You Already Own

A simple way to measure your ring size at home, using a ring you already love.

Tip: For more space while measuring, rotate your phone horizontally.

Use any standard credit, debit, or ID card.

Adjust the box until it matches your card

Place your credit, debit or ID card on the screen and adjust the box to fit edge to edge.

Smaller Larger

Move the slider until the box matches the width of your physical card.

Once calibrated, you won’t need to repeat this step on the same device.

Place your ring flat on the screen and match the inner edge.

Select your size system

Match the circle to your ring

Smaller Larger

Adjust until the outline sits exactly on the inner edge of your ring.

Your Size
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Diameter
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US – EU – UK –