How to find out your ring size
- Measure an existing ring you have at home
Measure the inner diameter in millimeters using a ruler or measuring tape.
Precision is key here. A one-millimeter margin of error can make a significant difference. - Measure the circumference of your finger
Take a piece of string or thread and measure the circumference around your finger. Where the ends meet, cut it off and measure it with a ruler. The measurement in millimeters is the circumference. Compare it with the size chart below. - Purchase a ring sizer
Slide the sizer onto your finger, tighten it, and read your size through the small magnifying glass.
Remember not to tighten it too much. The ring sizer should fit like a comfortable ring. You should be able to slide it on and off with some resistance.