How To Measure His Ring Size

Are you trying to figure out his ring size, perhaps even in secret? It's definitely possible! Here are three options to help you determine his ring size:

Three Ways to Measure His Ring Size

Option 1
The Old Fashion String Method

Figuring out his size using the string method is a great option if you are trying to keep it a secret from him. If you are sneaky enough you can use this method while he is sleeping.

What You'll Need

  • For this method, you would need a string and a ruler.


Here are simple steps to measure your ring size using a string and a ruler:

  1. Cut a String: Take a piece of string, about 6 inches long.
  2. Wrap the String: Wrap the string around the base of your finger. Ensure it is snug but not too tight.
  3. Mark the String: Use a pen to mark where the end of the string meets the rest of the string.
  4. Measure the String: Lay the string flat and measure the length from the starting point to the mark with a ruler in millimeters (mm).
  5. Find Ring Size: Use a ring size chart to convert the measurement in millimeters to your ring size.

Option 2
The Free Printable Ring Sizer

Yes, it's true. You can now print a ring sizer and never have to leave your house.

What You'll Need

  • Take a guess..... A printer and don't worry. You can print in black and white.


When you download the printable ring sizer make sure you set your printer scale to 100%. This is crucial to making sure the ring sizer is to scale.

Once you print out the printable ring sizer cut out the sizer & cut a slit indicated on the sizer. Step 2, insert tapered in through the slit, step three, slip the sizer onto your finger and adjust to give a comfortable fit. The size is indicated by the arrow.

Men's Ring Sizer Tool

Option 3
Order a Ring Sizer

You can purchase a ring sizer for under $4.00 online and some even might be free.


  • When you receive the ring sizer, take several measurements throughout the day for the most accurate fit. Your ring size can fluctuate due to changes in body temperature.


  • A ring sizer that comes by mail will always be more accurate than the printable sizers.