Find Your Press-On Nail Size Online — Measure Your Fingers in 30 Seconds
Measure Your Nail Size Online — Free, 30 Seconds, No Ruler
Free online measurement tool · Full size chart · Nail size database by finger · Expert fit tips
— everything in one place, nothing else needed.
Method 1 — Measure On-Screen (Fastest, No Tools Needed)
Method 2 — Measure the Old-School Way (More Precise)
Soft Ruler
Use the millimeter side. Measure from one edge to the other across the WIDEST part of your nail bed — not the tip.
Paper / Tape Strip
1. Wrap around the widest part of the nail. Mark both edges with a pen.
2. Lay flat against a ruler and read the mm between the marks.
Pro tip: measure both hands. Your dominant hand is often 0.5–1mm wider. Most MOONLEE sets include multiple pieces per size so you can mix.
Prefer a written walkthrough? → Read the full guide on our Knowledge Base →
The MOONLEE Size Chart
Browse the Nail Size Database
Detailed mm breakdowns by finger and size — all in one place. Find your exact size before you order.
Open the Database →| SIZE | WIDTH (mm) | BEST FOR |
|---|---|---|
| XS | 8 – 10.4 mm | Slim / petite fingers |
| S | 10.5 – 12.4 mm | Standard narrow |
| M | 12.5 – 13.4 mm | Standard |
| L | 13.5 – 22 mm | Wide nail beds |
Shop Press-On Nails
Browse All Press-On Nails
Every set, every size. Mix across 10 fingers, exactly as measured.
Shop the Collection →Moon 🌙 Mailbag
Q: How do I measure my nail for press on nails?
A: Use Method 1 above — it's a free nail measurement tool online. Credit card on screen to calibrate, hold each finger up, get your width in mm. Or use Method 2 with a soft tape measure. Always measure the widest point of each nail bed.
Q: How do I measure my nail size without a ruler?
A: The on-screen tool is your nail ruler replacement. No ruler, no printing, no app. Just your phone and a credit card. Accurate to ±0.5mm.
Q: Can I measure nail size online for free?
A: Yes — that's exactly what this page is. Free nail measurement tool online, works on phone and desktop, no downloads required.
Q: Do I need to calibrate every time?
A: No — your calibration is saved on your device. Only redo it if you switch screens.
Q: Are MOONLEE sizes the same as other brands?
A: Not always. Sizing varies by brand and nail shape. Always use our chart rather than assuming from another brand.
Q: Can I size down for a more tapered look?
A: We don't recommend it. Gaps at the sides collect moisture and cause lifting. File the shape instead of sizing down.
Q: What if my thumb is wider than size L?
A: Contact us — we can advise on custom sizing options.
Q: Do I need the same size for both hands?
A: Measure both. Your dominant hand is sometimes slightly wider. Most sets include multiple pieces per size so you can mix.
Q: What if I order the wrong size?
A: Each MOONLEE set includes multiple pieces per size, so minor measurement errors are covered. If you're genuinely between sizes, contact us before ordering — we'll help you get it right.
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