Rings Size Chart

Ring Size	Diameter	Circumference
5	15.8 mm	49.6 mm
6	16.5 mm	51.8 mm
7	17.2 mm	54 mm
8	18.2 mm	57.2 mm
9	19.1 mm	60 mm
10	19.8 mm	62.2 mm
11	20.6 mm	64.8 mm
12	21.6 mm	67.9 mm
13	22.3 mm	70.1 mm

Using Aporro Finger Measuring PDF

Step 1: Open and Print the PDF at 100% Scale

Open the Aporro Finger Measuring PDF, ensuring it's scaled to 100% before printing.

Ring Measuring PDF

Step 2: Verify the Print Size with a Credit Card

Use a standard credit card (3.37 inches / 85.6 mm wide) to check the printed paper's accuracy by placing it at the indicated spot on the Aporro Finger Measuring sheet. If it fits perfectly between the two arrows, the printed size is correct.

Step 3: Cut Out the Measuring Tool

Cut out the measuring tool from the printed Aporro Finger Measuring.

Step 4: Cut Along the Dotted Line

Cut the dotted line at one end of the measuring tool, allowing the other end to pass through it (make sure not to cut it off completely, and could fold the paper first for eay).

Step 5: Thread the Pointed End Through the Slot

Insert the pointed end of the measuring tool through the slot you just cut, forming a loop. Ensure the side with numbers is facing out for reading.

Step 6: Measure Your Finger Circumference and Determine Ring Size Number

Wrap the paper loop around the base of your finger, pulling the pointed end tight so the loop snugly fits your skin. Adjust the tightness to ensure it can move past the knuckle. Read the ring size number at the slot.

Step 7: Learn More About Your Ring Size

Refer to the size chart or the Aporro Finger Measuring for more detailed information about the size number of your ring.

Determining the Size of a Ring

Using a Tape Measure

Ring Size	Diameter	Circumference
50	15.8 mm	49.6 mm
52	16.5 mm	51.8 mm
54	17.2 mm	54 mm
56.5	18.2 mm	57.2 mm
60	19.1 mm	60 mm
62	19.8 mm	62.2 mm
64.5	20.6 mm	64.8 mm
68	21.6 mm	67.9 mm
70	22.3 mm	70.1 mm