How can we find out our ring size without a ring sizer?
Not knowing the exact size is one of the most common reasons for putting off ordering a ring. The good news is that you can get a reasonably accurate idea at home with simple household items before placing your order.
The essentials at a glance
- The simplest way to measure at home is to wrap a piece of thread or a thin strip around your finger and then measure it with a ruler.
- If you have a ring that already fits, you can measure its inside diameter instead of measuring your finger directly.
- For a more important purchase — such as wedding bands — consulting a jeweler is still the most accurate option.
How to measure with thread or a strip?
Wrap a thin piece of thread or a strip snugly around the base of your finger, where you normally wear the ring. Mark the point where the end overlaps, then unwrap the thread and measure its length in millimeters with a ruler.
This length is your finger circumference — compare it with a ring size chart to find the corresponding size.
| Circumference (mm) | Diameter (mm) | EU size | US size |
|---|---|---|---|
| 44.2 | 14.1 | 44 | 3 |
| 45.5 | 14.5 | 45 | 3.5 |
| 46.8 | 14.9 | 46 | 4 |
| 48.0 | 15.3 | 48 | 4.5 |
| 49.3 | 15.7 | 49 | 5 |
| 50.6 | 16.1 | 50 | 5.5 |
| 51.9 | 16.5 | 52 | 6 |
| 53.1 | 16.9 | 53 | 6.5 |
| 54.4 | 17.3 | 54 | 7 |
| 55.7 | 17.7 | 56 | 7.5 |
| 57.0 | 18.1 | 57 | 8 |
| 58.3 | 18.5 | 58 | 8.5 |
| 59.5 | 19.0 | 59 | 9 |
| 60.8 | 19.4 | 61 | 9.5 |
| 62.1 | 19.8 | 62 | 10 |
How to measure using a ring you already own?
If you already have a ring that fits comfortably on the same finger, you can measure its inside diameter — most accurately with calipers, though an ordinary ruler marked in millimeters placed across the widest inner point can also give you a good estimate.
This method is usually more accurate than measuring your finger directly, because the ring already has a fixed, stable shape that is easy to measure.
When should you consult a jeweler?
Consulting a jeweler is always the best choice, especially for higher-value purchases or items that cannot easily be exchanged — above all, wedding bands. Professional ring sizers also take into account factors such as band width, which home methods do not fully account for.
Browse our wedding band collection →
What should you keep in mind when ordering online?
Finger size can change slightly depending on the temperature and time of day — measuring in the evening or when your hands are cold may give a misleading result. It’s good practice to measure several times at different times of day and take the average.
Frequently asked questions
Which finger should we measure for a wedding band?
Usually, the ring finger of the hand on which you’ll wear the band — measure that finger specifically, not another one, as sizes can vary considerably from finger to finger.
Is measuring at home accurate enough for an order?
For most orders — yes, especially if you measure several times. For more important or expensive purchases, consulting a jeweler reduces the risk of error.
Can a ring size be adjusted after ordering?
Usually, yes, within a reasonable range — as long as the ring has not been engraved, which can limit subsequent adjustments.
Does ring size differ between morning and evening?
Yes, fingers swell slightly in warm weather and throughout the day — so it’s best to measure at several different times and take the average, rather than measuring just once.
Measuring at home with thread or a ring you already own gives you a good starting point for most orders — but for wedding bands, consulting a jeweler remains the safest option.
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