When you don't know your ring size, it's a challenge to find jewelry that fits. If your ring is way too tight, getting it off your finger becomes a real struggle. If it's too big, the ring might slide off, so you're more likely to lose it. If you want a new ring but you're not up for a trip to the jeweler, size your finger at home with a piece of string and a ruler.

Step 1

Cut a 6-inch piece of light-colored, nonstretchy string such as yarn or twine.

Step 2

Wrap the string around the base of your finger, just below the knuckle.

Step 3

Use a pen to mark the string where the two ends overlap.

Step 4

Lay the string flat across a ruler with the pen mark on the right.

Step 5

Note the number on the ruler that's closest to the pen mark. This is your ring size in inches.

Step 6

Compare the size in inches to a ring-size chart (see Resources). For example, if you measured the string at 1.94 inches, your actual size would be 5.