3 Simple Ways to Measure Your Ring Size at Home

Est. Reading: 3 minutes
April 20, 2023
a man with a measuring tape against a wall
Table of Contents

Ready to choose an engagement ring for that special someone? Or looking to buy a beautiful ring as a gift for the one you love? Perhaps you’re even looking for a ring to spoil yourself?

Whether it’s for you or for someone else, without the exact ring size though, it can be a disappointing experience when the ring turns out to be either too big or too small.

Although most rings can be easily resized, it’s usually best to start things off right from the outset - with the correct ring size!
But how?

For an exact ring size measurement, it’s always best to visit a professional jeweller, though you CAN measure your ring size at home if you’re stuck!

How can you measure ring size at home?

Depending on your country, ring sizes can be measured in millimetres, centimetres or inches.

Here in Ireland though (also the UK, Australia, and New Zealand), we tend to use individual letters ranging from G - Z to identify specific ring sizes – these letters match the specific measurements of the ring’s internal circumference.

ring size conversion chart

Whilst a jeweller will always give you the most precise measurement, it isn’t always easy to make an appointment with one – especially if the ring is a surprise gift!

So, depending on your situation, here are three simple ways to measure the correct ring size at home:

1. Measure an Existing Ring

This is likely the most straightforward method of finding the correct ring size – especially if the ring happens to be a surprise gift!

  1.  Simply place an existing ring along a ruler and measure straight across the inside of the ring from edge to edge.
  2. Take note of the measurement in millimetres, and then use a ring measurement-conversion chart to find the correct corresponding letter to the ring size.

2. Use a Piece of String.

If the ring isn’t necessarily going to be a surprise, then you can easily find the correct ring size using a piece of string!

  1. Wrap a length of string around the base of the finger where the ring would sit and mark the point where the string overlaps – remember that the string should fit ‘snugly’ on the finger (not too loose or too tight).
  2. Remove the string and stretch it along the length of a ruler or measuring tape, taking note of the measurement in millimetres. Then, using a ring measurement-conversion chart, find the correct corresponding letter for the right ring size.

3. Print Out a Paper Ring Sizer

If you have access to a printer, why not print your own ring sizer?

Here’s a great example of a free open-source ring sizer template – simply click here.

N.B. When printing, just ensure your “print scale” is set to 100%, and that you untick the “fit to page” box to get a true-to-scale measurement from the printout.

Here’s how to use it:

  1. Place an existing ring over the circles on the sheet and match the size to the letter.
  2. Alternatively, carefully cut-out the pre-measured ring size template and snugly wrap it around your finger.

In both cases the template will highlight the correct letter corresponding to your correct ring size!

Need help?

At Martin Gear Jewellers, the first alteration is included and then there's a small charge thereafter. We’re also one of the only jewellers in Dublin with an onsite manufacturing workshop, meaning we can easily resize most types of rings as well as completely rework your old rings into something entirely new!

Simply visit our store on 5 Mary St, Dublin 1 to find out more.

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