Find your ring size
Match a ring you own on the screen, or measure your finger. Then read the size in any country’s system.
Three ways to find a ring size at home
Use a ring that already fits. This is the most reliable way. Set the screen to true size once with a bank card, lay the ring flat on the screen and widen the circle until it just fills the inside of the ring. The tool reads off the inside diameter and converts it.
Measure the finger. Wrap a thin strip of paper round the base of the finger, mark where it overlaps, and measure the length to the mark in millimetres. That length is the circumference. Make sure the strip also slides over the knuckle; if the knuckle is much wider than the base, measure both and choose a size in between.
Print the paper sizer. Print it at 100 percent, check the 50 mm test line with a ruler, cut out the strip and read the size where it meets the slit.
How the sizing systems relate
Every system measures the same thing, the inside of the ring, in a different way. European sizes are simply the inside circumference in millimetres: a size 54 ring is 54 mm round the inside. Indian sizes, and those used in Switzerland, Italy and Spain, are the circumference minus 40. British, Irish and Australian sizes are letters that go up by 1.25 mm of circumference each. American and Canadian sizes are numbers that go up by about 0.8 mm of diameter each. Japanese sizes go up by a third of a millimetre of diameter.
Common questions
When should I measure? At the end of the day, when your hands are warm. Fingers are smaller in the morning and in the cold, and can swell by half a size in heat.
Do wide rings fit differently? Yes. A band wider than about 6 mm grips more of the finger and feels tighter, so go up half a size.
What is the average ring size? Most women’s rings sold are around US 6 to 7 (Indian 12 to 14, UK L to N). Most men’s are around US 9 to 10 (Indian 20 to 22, UK R to T).
How are bangles sized in India? By inside diameter in inches and sixteenths: size 2-4 means 2 and 4/16 inches, which is 57.2 mm. The bangle has to pass over the widest part of your hand, so measure round your hand with the thumb tucked in.