There are a few environmental and physical factors to consider before deciding on the size of the ring you want to buy, but keep in mind that when it comes to guessing your partner’s ring size, guess on the big side as it’s easier to size a ring down.
Remember the average ring size for women is between 49 and 54 (EUR), while sizes commonly range from 57 to 62 (EUR) for men.
If you don’t have any other information available, it’s best to choose from these ranges.
The ideal time to measure your finger size is at night.
Most people’s fingers tend to be at their largest in the evening and smallest in the morning.
Measuring your partner’s finger size in the evening guarantees a comfortable fit.
Fingers tend to react to temperatures and can change size depending on the weather.
The cold winter air will shrink fingers, while the opposite happens in summer or when it is hot and humid.
Avoid measuring finger size outside in very cold or very hot temperatures
Other factors can cause fingers to grow, such as exercise, water retention, pregnancy, aging and arthritis.
Weight loss and low temperatures can cause your fingers to drop in size.
Thicker ring bands (larger than 6 mm) will sit tighter.
It is advised to always go for half a size up when buying a thicker band so that the ring is comfortable.