How to Measure Ring Size at Home

To measure ring size at home, use our free ring sizer, printable ring size chart, and step-by-step methods to help you find the perfect fit.

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Ring Size Chart

All of our rings are crafted in standard US sizes. View the chart below to see how US sizes map to finger circumference and convert to international sizes. Engagement rings, wedding bands, and fashion rings all follow the same size format.

Ring Size Chart
Inside Circumference US, Canada, Mexico UK, Australia, Ireland, New Zealand, South Africa France Germany, Russia, Ukraine, Asia India, China, Japan, South America, Turkey, Israel Italy, Spain, Netherlands, Switzerland
IN MM
1.7444.23F441444
1.7744.83.25F 1/24514 1/4---4 5/8
1.7945.53.5G45.514 1/255 1/4
1.8246.13.75G 1/24614 3/465 7/8
1.8446.84H471576 1/2
1.8747.44.25H 1/247.5------7 1/8
1.89484.5I4815 1/487 3/4
1.9248.74.75J48.515 1/2---8 3/8
1.9449.35J 1/24915 3/499
1.97505.25K5016---9 5/8
1.9950.65.5K 1/250.516 1/41010 1/4
2.0251.25.75L51---1110 7/8
2.0451.96L 1/25216 1/21211 1/2
2.0752.56.25M52.516 3/4---12 1/8
2.0953.16.5M 1/253171312 3/4
2.1253.86.75N54------13 3/8
2.1454.47N 1/254.517 1/41414
2.1755.17.25O5517 1/2---14 5/8
2.1955.77.5O 1/25617 3/41515 1/4
2.2256.37.75P56.518---15 7/8
2.24578P 1/257---1616 1/2
2.2757.68.25Q5818 1/4---17 1/8
2.2958.38.5Q 1/258.518 1/21717 3/4
2.3258.98.75R5918 3/4---18 3/8
2.3459.59R 1/260191819
2.3760.29.25S60.519 1/4---19 5/8
2.3960.89.5S 1/26119 1/21920 1/4
2.4261.49.75T61.5------20 7/8
2.4462.110T 1/26219 3/42021 1/2
2.4762.710.25U63202122 1/8
2.4963.410.5U 1/263.5---2222 3/4
2.526410.75V6420 1/22323 3/8
2.5464.611V 1/26520 3/42324
2.5765.311.25W65.5------24 5/8
2.5965.911.5W 1/266212425 1/4
2.6266.611.75X6721 1/4---25 7/8
2.6567.212X 1/267.521 1/22526 1/2
2.6868.112.25Y68------27 1/8
2.7168.512.5Z6921 3/42627 3/4
2.7269.112.75Z 1/269.5------28 3/8
2.7569.713---70222729
Inside Circumference
IN MM
1.7444.2
1.7744.8
1.7945.5
1.8246.1
1.8446.8
1.8747.4
1.8948
1.9248.7
1.9449.3
1.9750
1.9950.6
2.0251.2
2.0451.9
2.0752.5
2.0953.1
2.1253.8
2.1454.4
2.1755.1
2.1955.7
2.2256.3
2.2457
2.2757.6
2.2958.3
2.3258.9
2.3459.5
2.3760.2
2.3960.8
2.4261.4
2.4462.1
2.4762.7
2.4963.4
2.5264
2.5464.6
2.5765.3
2.5965.9
2.6266.6
2.6567.2
2.6868.1
2.7168.5
2.7269.1
2.7569.7

How to Measure Ring Size at Home

Unsure about your ring size? These three simple at-home methods will help you find your perfect fit.

1. Make Your Own Ring Sizer

What you’ll need:   

  • Printer & paper    
  • String, yarn, floss, or a thin strip of paper    
  • Pen or marker    
  • Ruler  

Steps:   

1. Cut a piece of string, yarn, floss, or thin strip of paper to at least three inches long.   

2. Wrap one end of the string around the base of the intended finger.

3. Using a pen or marker, mark where the end of the string overlaps with the rest.

4. Lay the string flat and use a ruler to measure the length between the end and your mark in millimeters.

5. Use the Ring Size Conversion Chart to match the millimeter length to the corresponding ring size.

2. Print a Ring Sizer

What you’ll need:   

  • Printer & paper   
  • Scissors   

Steps:

1. Print the Printable Ring Sizer & Conversion Chart. Set page scaling to “100” in your print settings and use 8.5 x 11-inch standard paper.

2. Cut out the ring sizer and the slot as instructed. 

3. Wrap the paper ring sizer snuggly around the base of the intended finger so that the numbers are visible and insert the pointed end through the slit you made in the sizer.

4. Note the number that lines up with the slit; this is your ring size! Remember that quarter sizes are also available if your sizer indicates that you are between whole and half sizes. 

3. Measure an Existing Ring

What you’ll need:   

  • Printer & paper   
  • Scissors   
  • An existing ring 

Steps:

1. Print the Printable Ring Sizer & Conversion Chart. Set page scaling to “100” in your print settings and use 8.5 x 11-inch standard paper.

2. Choose a ring that correctly fits the intended finger.

3. Lay the ring over each size circle within the chart until you can closely match the inside edge to one of the circles on the guide. If the ring falls between two sizes, contact us to order the quarter size between them.