The first step in achieving long lasting press on nails is finding the perfect fit. There are two options to sizing your nails.

Option 1: You will need a thin-tipped marker or pen, adhesive tape, and a ruler or measuring tape.

measuring nail bed with tape

Step 1: Place a piece of tape across your fingernail.

Step 2: Mark the sides of your nail bed with a thin-tipped marker or pen. Be as precise as you can.

Step 3: Stick the tape onto a flat surface. Measure between the widest part of your two lines using millimeters. Match your sizes with the chart below.

measurements for press on nails


press on nail sizes


Option 2: You can purchase one of our sizing kits located on our NAIL ESSENTIALS page. Simply try on each nail, write down your sizes, and then purchase your custom set. Please note different shapes may size differently.



press on nail shapes and lengths

*The Tapered Coffins have a deeper curve and therefore a more narrow fit. This shape is not suitable for a flat or wider nailbed.


If you need a chart so you can download and keep with you, here's a chart for you to use. Right-click on the image and save it to your computer or phone.

coro printable nail sizing chart