How to Measure Your Ring Size at Home
Measuring your ring size at home can be a simple and convenient way to get a good indication of the size you need. Having your finger measured by a jeweller remains the most reliable approach, but it isn't always possible to visit a jeweller in person.
Fortunately, there are several ways to measure your ring size at home. The method that works best will depend on what you have available, whether you're measuring your own finger or choosing a ring as a surprise, and how closely you want to replicate the fit of a finished ring.
Use a ring gauge
A ring gauge is one of the most reliable ways to measure your ring size at home. It consists of a set of individual rings in different sizes, allowing you to try them directly on your finger and compare how each feels.
This is particularly useful because you're assessing the fit itself rather than simply taking a measurement. You can see how easily the ring passes over your knuckle, how it sits at the base of your finger and whether the size feels comfortable when you wear it.
If you're between two sizes, trying both can help you understand which feels better. The aim is a ring that feels secure without being restrictive, and that can pass comfortably over the knuckle.
Use an adjustable ring sizer
An adjustable ring sizer is another convenient option for measuring your size at home. It uses a flexible strip that wraps around your finger and can be adjusted until it feels comfortable, with the corresponding size shown on the sizer.
It is particularly useful if you don't have a set of individual ring gauges and can provide a good indication of your size when used carefully. Position the sizer around the base of your finger and make sure it can pass comfortably over your knuckle.
If you're ordering a True Brilliance ring, our adjustable ring sizer can be used to help determine your size before ordering.
Measure an existing ring
If you already have a ring that fits well, you can use it as a reference for a new ring.
Measure the internal diameter across the widest point of the ring, from one inside edge to the other, and compare the measurement with a ring size chart to find the closest corresponding size.
The most useful reference is a ring that fits the same finger and hand as the ring you are choosing. Finger sizes can vary between fingers and between hands, so using a ring worn on the intended finger will give you the most meaningful comparison.
Use a printable ring sizer
A printable ring sizer can provide another convenient way to estimate your ring size at home, particularly if you don't have a physical sizing tool available.
When printing, make sure the document is set to 100% or actual size rather than being scaled to fit the page. The scale needs to remain accurate for the measurements to correspond correctly.
Follow the instructions provided with the sizer and, if possible, compare the result with another method. Taking more than one measurement can give you greater confidence in the size you're choosing.
Measure your finger
If you don't have a ring sizer or an existing ring to measure, you can also measure around your finger using a narrow strip of paper or a piece of non-stretch string.
Wrap it comfortably around the base of your finger, mark where the ends meet and measure the resulting length in millimetres. You can then compare this measurement with a ring size chart.
This can be a useful starting point when other methods aren't available. As paper or string can move slightly while you measure, taking the measurement carefully and repeating it can help give you a more consistent result.
Choosing a ring as a surprise
Choosing an engagement ring as a surprise is exciting, and finding their ring size can become part of the experience. While you may not be able to ask directly, there are several discreet ways to get a good indication without giving anything away.
If they already wear a ring on the finger you're buying for, borrowing it briefly can give you a useful starting point. Measure its internal diameter and compare it with a ring size chart, making sure it is a ring they actually wear on the intended finger.
A close friend or family member may also know their size or be able to help you find out. You could even use a casual conversation about jewellery or ring sizing as an opportunity to discover whether they already know their size.
If you're working from an estimate, there are several ways to increase your confidence before choosing the final size.
Which method should you choose?
A ring gauge or adjustable ring sizer gives you the clearest indication of how a particular size will actually feel on your finger, while measuring an existing ring can be particularly useful when you already know you like the fit.
Printable sizers and finger measurements offer convenient alternatives when you don't have access to physical sizing tools. Whichever method you choose, taking your measurement carefully and checking it more than once can help you feel confident in the result.
Finding your ring size
Your ring size is only one part of achieving a comfortable fit. The design and width of the ring, as well as natural changes in your fingers, can also affect how it feels to wear.
For more guidance, our Ring Size Guide brings together everything you need to find the right fit. If you need any help choosing your size, please get in touch — we're always happy to help.