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How to measure your UK ring size at home

So you’ve fallen in love with a ring you’ve found online.

Last Updated on October 27, 2020

So you’ve fallen in love with a ring you’ve found online but you don’t know your size? We got you. If you haven’t got a ring sizer to hand, there’s a simple and easy way to measure yourself at home.

You will need

  • A piece of string or strip of paper, no wider than 1.5cm or 1/2 inch
  • Ruler


  • Wrap your string/paper around the base of the finger you’d like to measure
  • Use a pen to mark the point on the string/paper where it overlaps
  • Use the ruler to measure the length from the starting end of the string/paper to the mark you’ve made
  • Use the below chart to work out the approximate size of your finger

UK sizes

G – 45.5mm

H – 46.8mm

I – 48mm

J – 48.7mm

K – 50.0mm

L – 51.2mm

M – 52.5mm

N – 53.8mm

O – 55.1mm

P – 56.3mm

Q – 57.6mm

R – 58.9mm

S – 60.2mm

T – 61.4mm

U – 62.7mm

V – 64mm

W – 65.3mm

X – 66.6mm

To make sure the ring fits correctly, we advise making sure the paper ring you’ve made slides comfortably on and off. It’s better to size up than to size down, which brings us onto our next tip: make sure you don’t measure your ring size with cold fingers. This is when your fingers are at their smallest, while when they’re super warm your finger expands. The best time to measure your size is at the end of the day, when your fingers are at their largest.

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