So you’ve fallen head over heels for a dreamy set of press-on nails, only to realize… they don’t fit. Nail sizing drama happens to the best of us. But here’s the tea: the perfect fit is what takes your manicure from “cute” to flawless, long-lasting, and comfortable.

At GELLY, we don’t believe in trial and error. We believe your manicure should be gorgeous and effortless. That’s why every set comes with 10 perfectly curated nails based on a super-thoughtful nail sizing scale. Translation: no digging through a chaotic pile of extras. Just pop them on and stun.

Why nail sizing matters for a flawless manicure

Choosing the right press-on nail size isn’t just about looking good (though, duh, it helps). It’s about staying power and comfort.

Prevents lifting: Nails that are too wide can overlap onto your skin and cuticles, and the glue won’t bond properly. Well-fitted nails stop the lifting.
Avoids weak spots: Too narrow? You’ll get little gaps that catch on hair or clothes. Not cute.
Feels like a dream: The right press-on nail fit means no pinching, no pressure, just natural, comfy nails.

How to measure your nail size in 3 simple steps

Finding your size is way easier than you think. Here’s the no-mess method:

Step 1: Grab your tools

Use a small piece of transparent tape or tissue paper to cover your nail. With a pen, make a mark at the widest part of your nail bed (left and right sides), directly on the tape.

Step 2: Measure your width

Carefully remove the tape and stick it onto a ruler. Measure the distance between the two marks in millimeters (mm). That’s your nail width.

Step 3: Match to the chart

Compare your measurement to our GELLY nail size chart below.
✨Pro tip: Your dominant hand can run slightly bigger, so measure that one.

The GELLY Press-On nail size chart

Every GELLY press-on nail set is pre-curated with 10 perfect sizes, one for each finger. We’ve done the sizing math so you don’t have to. No excess, no confusion. Just sleek, salon-quality nails ready to go!

What If you’re between sizes?

Happens all the time. Our pro advice? Always size up. You can easily file down the sides for that snug, custom fit.

Press-On Nail Sizes FAQs

1. How do I measure my nails for press-ons?
Use a piece of tape or paper to mark the widest part of your nail, then measure it against a ruler in millimeters. Compare your results to a press-on nail sizing chart to find your best fit.

2. What if my nails are between sizes?
Always size up. Slightly larger press-ons can be filed down for a custom fit press-on nail look that’s snug and comfortable.

3. Do press-on nail sizes fit everyone?
Most sets (like GELLY’s) include 10 carefully curated sizes designed to fit most nail beds. With the right press-on nails that fit, you can get salon-quality results at home.

4. Why does nail size matter for press-ons?
Choosing the best size press-on nails keeps them secure, prevents lifting, and makes them more comfortable and long-lasting.

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