It's not easy to get accurate measurements which is why we recommend our Sizing Kits.

You need to know the width of each of your nails at the widest point, in mm. You can either use a flexible tape measure, or sticky tape and a ruler.

With sticky tape, stick a piece over your bare (remove any polish etc first) nail and mark where the edge of the nail is at the widest point.

Remove the tape and stick it down on a piece of paper and measure between your marks with a ruler.

Do this with each finger on both hands, starting with the thumb and working down to the pinky.

Write down your measurements. You can now work out your size