Method No. 1: Measure Without a Ring (diameter)

Step 1

  • Take a thin thread or strip of paper.
  • Wrap the thread or paper around your finger.
  • Mark the meeting spot of the thread/paper end.

Step 2

  • Measure the length of the thread/paper in an scale.
  • Use the following chart to determine your ring size.

Overall Procedure:

1. Cut a thin strip of paper
 

2. Wrap the paper around your finger. Make sure it's snug.

3. Mark with a pen where the two ends meet.
 

4. Measure length on a ruler from tip to pen mark.

Method No. 2: Measure With a Ring (inner ring)

Put the ring on a ruler (centimeter side). Make sure it sits from 0 and that you are measuring the inside diameter not the outside.

US Size Indian/Pak Size Circumference Diameter
US 3.0 4 -5 44.2mm - 1.74inch 14.07mm - 0.554inch
US 3.5 6 45.5mm - 1.79inch 14.48mm - 0.570inch
US 4.0 7 46.8mm - 1.84inch 14.88mm - 0.586inch
US 4.5 8 48.0mm - 1.89inch 15.29mm - 0.602inch
US 5.0 9 - 10 49.3mm - 1.94inch 15.70mm - 0.618inch
US 5.5 11 50.6mm - 1.99inch 16.10mm - 0.634inch
US 6.0 12 51.9mm - 2.04inch 16.51mm - 0.650inch
US 6.5 13 53.1mm - 2.09inch 16.92mm - 0.666inch
US 7.0 14 - 15 54.4mm - 2.14inch 17.32mm - 0.682inch
US 7.5 16 55.7mm - 2.19inch 17.73mm - 0.689inch
US 8.0 17 - 18 57.0mm - 2.24inch 18.14mm - 0.714inch
US 8.5 19 58.3mm - 2.29inch 18.54mm - 0.730inch
US 9.0 20 59.5mm - 2.34inch 18.95mm - 0.746inch
US 9.5 21 60.8mm - 2.39inch 19.35mm - 0.762inch
US 10.0 22 - 23 62.1mm - 2.44inch 19.76mm - 0.778inch
US 10.5 24 63.4mm - 2.49inch 20.17mm - 0.794inch
US 11.0 25 64.6mm - 2.54inch 20.57mm - 0.810inch
US 11.5 26 65.9mm - 2.59inch 20.98mm - 0.826inch
US 12.0 27 - 28 67.2mm - 2.64inch 21.39mm - 0.842inch
US 12.5 29 68.4mm - 2.69inch 21.79mm - 0.858inch
US 13.0 30 69.7mm - 2.75inch 22.20mm - 0.874inch