You can print this off and use it to quickly work out your own, or your partner’s, ring size in mm. The most common women’s ring size is N ½. With that in mind, we will work with you to ensure you know how to measure ring size to find the perfect fit.Keep in mind that unless done by a professional, DIY ring measurements should be used as a guide only, and are not always 100% accurate, so further adjustments may need to be made for the perfect fit.Unless you know the exact ring size, be wary of picking a band that has diamonds encrusted all the way round, as these can be difficult or even impossible in some cases to re-size Grab a ruler and measure the diameter of the ring (its widest part) in mm.Sizing beads can be added to rings to help them stay in place and are easy to add and remove. Using a tape measure, find out your ring size (in mm) by measuring the circumference around the third finger on your left hand. Keep in mind finger type – tapered fingers (wide base, narrow tip) require a snug fit, as rings can easily fall off, whereas knotted fingers (knuckle is the widest part) need a ring that can fit over the knuckle, but won’t move around at the base of the finger.Ideally measure your finger at least 3 times to ensure your measurement is accurate.The evening is the best time to measure fingers, as this is when they are largest.
Wider bands have a tighter fit than thinner bands, so when using another ring to assist you with estimating a measurement, pick a similar design to the ring you are hoping to buy.If you’re not sure, always err on the larger size when buying rings.
