Here is a basic DIY option to measure your ring size.
FOR A MORE ACCURATE MEASUREMENT, I have a ring sizer tool that you can purchase from my shop for $5. I will include a $5 coupon code that you can use towards your next purchase. And you can keep the ring sizer tool for re-use.
DIY RING SIZING GUIDE
RINGS
DIY measure your fingers at home by following these steps:
1. Cut a strip of paper or string that will wrap around the circumference of your finger
2. Wrap the paper/string around your finger, make sure it's nice and comfortably tight and mark the spot where it meets
3. Measure the distance with a ruler (in mm); this will be your finger's circumference
4. Account for Knuckles: Make sure the paper/string loop can easily slide over your knuckle. The ring must fit past this widest point.
Size Chart
Finger Circumference (mm)
Ring Size (US)
43-45mm - Size 3
45-47mm - Size 4
48-50mm - Size 5
50-53mm - Size 6
53-55mm - Size 7
55-58mm - Size 8
58-60mm - Size 9
60-63mm - Size 10
63-65mm - Size 11
65-67mm - Size 12
