Read time: 5 minutes
Accurate measurement represents the most crucial step when you prepare to order your wedding bands. If you perform a correct wedding band size calculation, you ensure absolute comfort and perfect fit for the rest of your life. Indeed, you avoid both the risk of loss and the feeling of discomfort during daily wear.
When you start the sizing process at home, you frequently encounter questions regarding the proper method. For this reason, utilize the specialized wedding band size calculation by FaCad’oro, where we present three practical measurement methods and a clear conversion chart.
Before proceeding with measurements, we suggest reading our previous wedding bands buying guide to decide on the ideal metal and design.

Three Practical Methods for Home Measurement
Initially, you easily apply three different methods to find a safe preliminary size estimate before visiting our physical store:
- The thread or tape method: Wrap a thin thread around the base of your finger, mark the junction, and measure the length in millimeters (mm) on a ruler.
- The existing ring method: Place another perfectly fitting ring of yours onto a ruler and measure its inner diameter.
- The printable size guide: Utilize a digital scale printout guide from trusted sources, as recommended by the GIA (Gemological Institute of America).
Simultaneously, remember to measure your fingers ideally in the late afternoon, since body temperature slightly affects swelling.

Size Conversion Chart (mm to EU size)
To facilitate your research, we constructed a clear conversion chart between inner circumference and official European sizes:
| Inner Circumference (mm) | Inner Diameter (mm) | European Size (EU Size) |
|---|---|---|
| 50.0 mm | 15.9 mm | 50 |
| 52.0 mm | 16.5 mm | 52 |
| 54.0 mm | 17.2 mm | 54 |
| 56.0 mm | 17.8 mm | 56 |
| 58.0 mm | 18.5 mm | 58 |

Additionally, we invite you to browse our rich collection within the wedding bands category by FaCad’oro, where every design is crafted focusing on a perfect fit.

Finally, because no home measurement replaces the accuracy of a professional tool, contact us to schedule a visit.
Frequently Asked Questions (FAQ)
1. What is the best time of day for measurement?
We recommend measuring your finger in the late afternoon or early evening. At that time, body temperature reaches normal levels and offers the most reliable sensation.
2. Does temperature affect finger size?
Yes, warmth causes slight swelling in fingers, whereas cold contracts them. Therefore, avoid measurements right after exposure to extreme temperatures.
3. What happens if the size turns out wrong after ordering?
At FaCad’oro, we provide sizing adjustment options for most of our wedding bands. However, we always recommend professional verification to prevent mistakes.
4. Does size differ between left and right hand?
Of course! The hand you use more frequently (for example, the right hand) usually features slightly wider fingers than the left.
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