3 Ways to measure your ring size:
1. The best and most reliable way to find out what your ring size is would be to go to your nearest jewellery store and ask them to take the measurement.
2. Another option is to download the Ring Sizer app on your phone. To measure your ring size this way you will need an actual ring that fits you. The app will show a circle on your screen. Place your ring onto it and adjust the circle until it fits perfectly inside the band of the ring. Your ring size in diameter is the number that is shown in the centre of the circle.
3. The last option to consider is using a string to measure your finger, though it is not recommended as it is often inaccurate. Wrap the string around your finger to measure the circumference of your finger in millimeters and when can use that to determine your size.