measure ring size

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How To Measure Ring Size Like A Pro

The question of how to measure ring size is so important. When it comes to wearing rings, having the correct ring size makes all the difference.

But how do you find out your ring size?

Let’s explore different techniques for measuring ring size, from traditional in-store methods to innovative online tools.

Understanding Ring Sizes and Fit

Ring sizes may vary around the world, with the U.S., UK, and SA each having its own ring sizing chart. 

U.S. ring sizes normally range from 3 to 13. It includes a numerical measurement and sometimes a fractional decimal to account for half-sizes.

The UK and SA standards use alphabetic sizing from A through Z.

A proper fit is important because it affects both the ring’s security and the wearer’s comfort.

Factors like knuckle size and temperature fluctuations can influence the fit of a ring; your fingers might swell in the heat or contract in the cold. This will have an effect on the size you should select.

U.S. SizeU.K. SizeSouth Africa SizeDiameter (mm)Circumference (mm)
3FH 1/214.0544.2
3.5GI14.4545.5
4HJ14.8646.8
4.5IK15.2748.0
5JL15.7049.3
5.5KM16.1050.6
6LN16.5151.9
6.5MO16.9253.1
7NP17.3554.4
7.5OQ17.7555.7
8PR18.1957.0
8.5QS18.5358.3
9RT18.8959.5
9.5SU19.4161.2
10TV19.8462.8
10.5UW20.2063.8
11VX20.6865.2
11.5WY21.0866.5
12XZ21.4967.8
12.5Y21.8969.1
13Z22.3370.4
International Ring Size Chart

Traditional and Online Methods to Measure Your Ring Size

Traditional methods involve a jeweller using a ring mandrel and a set of gauges. These tools are highly accurate but require an in-person visit.

Online methods, on the other hand, offer convenience and can guide users through measurement tips for rings from the comfort of home.

DIY Methods: String, Paper, and Ruler

diy methods to measure your ring size

For a do-it-yourself ring measurement, you can use simple household items. Here is a step-by-step guide using the string method:

  1. Take a piece of string or dental floss and wrap it around the base of your finger.
  2. Use a pen to mark the point where the string overlaps to form a complete circle.
  3. Lay the string flat and measure the length between the end of the string and the pen mark with a ruler in millimetres.
  4. Use our ring size chart to determine your ring size based on this circumference measurement. The circumference of your ring is the length around the whole ring.

Top Tip: Measure your finger at the end of the day when it’s likely to be at its largest. Ensure the string is snug but not tight for an accurate ring measurement.

Measuring Ring Size for Different Finger Types

Finger types vary, and so does the method for measuring them. 

Different finger shapes and sizes require different considerations. For instance, if your knuckle is significantly larger than the base of your finger, measure both and select a size in between.

It’s important to choose a size that fits over the knuckle but doesn’t slide around excessively at the base.

Ring Sizing for Men and Women: Is There a Difference?

difference between men and women when meausing ring size

Yes, there tends to be a difference between ring sizes for men and women.

Men’s rings are often wider and have a larger average ring size. While there is no difference in the actual measurement process, ring sizing charts might be divided by gender.

Note that ring sizes are not strictly gender-specific and anyone can measure their size using any available ring sizer tool.

International Ring Sizes and Conversion

Navigating international ring sizes can be a challenge, but it’s an important part of ring shopping for those who purchase from international jewellers.

Each country or region may have its own sizing standard, you can convert between them by using our ring size conversion chart or an online ring size calculator.

To convert international ring sizes:

  1. Measure your finger with a string or paper strip method or find your size with a professional tool.
  2. Use a ring size conversion chart that includes the sizing standards of your country and the one you are interested in.
  3. Or you can input your measurement into an online ring size calculator that can offer conversions to different international sizes.

You can find conversion charts and calculators online and in most jewellery stores.

Resizing and Adjustments: What You Need to Know

When it comes to resizing and adjustments, there are certain scenarios in which a ring can or cannot be resized:

  • Rings with full diamond bands typically cannot be resized as it would disrupt the setting.
  • Tungsten, titanium and stainless steel rings are also challenging to resize due to their material properties.
  • Eternity rings with stones set all the way around are difficult and sometimes impossible to resize without changing their design.

It’s important to consider the resizing options before purchasing a ring.

In cases where resizing isn’t possible, you may opt for inserts that can temporarily adjust the size or choose a custom ring sizing to avoid the need for future alterations.

Advanced Techniques and Tools for Accurate Measurement

tools for measuring ring size

Beyond the home methods, there are professional tools that offer a high degree of accuracy when it comes to ring sizing.

These include ring mandrels, ring sticks, finger gauges, and ring sizers that come in a variety of materials such as metal or plastic.

Ring mandrels are tapered rods marked with ring sizes, and they are used to determine the size of an existing ring. To use one, a ring is slid onto the mandrel to see which marking it lines up with.

Ring sticks, similar to mandrels, are often used in conjunction with a ring sizer, a set of metal rings in various sizes that consumers can try on to determine their size.

A finger gauge is a collection of rings on a loop, appearing like a keyring, which represents different sizes to be tried on. Jewellers use these to quickly gauge finger size.

When using these tools, jewellers adopt several techniques to ensure measurement accuracy:

  • Ensuring hands are at a normal temperature
  • Measuring the finger multiple times during the day for consistency
  • Accounting for knuckle size and whether a ring will regularly be taken on and off
  • Consulting a ring sizing chart for precise conversion

Visiting a jewellery store for professional sizing is advisable, especially when purchasing an expensive or meaningful ring, such as wedding or engagement rings.

They are equipped with the correct tools and expertise to provide the most accurate ring measurement for your comfortable fit.

FAQs and Common Concerns

  • How can I measure my ring size at home in cm? Use the string or paper method, then convert the millimeter measurement to centimetres for comparison with a sizing chart.
  • How do I find out my ring size? Consult a jeweller, use the at-home methods described above, or order a ring sizer online. Remember your dominant hand might have slightly larger fingers, so measure the exact finger you will be wearing the ring on.
  • What is the average ring size for men and women? For women in the S.A, the average is around size 6 to 7, while for men it’s between 8 and 10.5.
  • Are there resizable rings? Yes, there are rings designed with an adjustable feature, which can accommodate size changes without the need for a jeweller.
  • How to measure ring size UK? In the UK, ring sizes are indicated by letters, and you can use similar DIY methods but refer to a UK ring sizing chart for conversion.
  • How do you know your ring size? Use a string or printable ring sizer, compare it to a ring size chart, or visit a jewellery store.
  • How do I measure my ring size at home? The string or paper strip method is often used, together with a ruler and a ring-size chart for reference.
  • How to find someone’s ring size without asking? You could borrow one of their rings and use a ring sizer or ask friends and family if they know the size.

To keep your sizing discreet, whether it’s for a surprise gift or an engagement ring, consider:

  • Borrowing one of their rings (from the correct finger) to compare with a ring sizer or to take to a jeweller.
  • Enlisting a trusted friend or family member to subtly find out the size
  • Using an adjustable ring as a placeholder until you can obtain the correct size
  • Jewellers also offer discreet sizing methods through subtle questioning or by providing an educated guess based on average sizes and the wearer’s physical characteristics.

Conclusion

the perfect fitting ring

Determining the correct ring size is essential, but it doesn’t have to be a complicated process.

By understanding the various methods for measuring ring size,you can ensure an accurate and comfortable fit.

For those looking to find the perfect ring,  Pag and Mag’s ring collection offers a range of options that cater to all styles.

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