Professional Nail Length Calculator

Nail Length Calculator

Determine your ideal proportions, choose a professional shape, and see your new look instantly.

01 Natural Bed Length

12mm
Petite Standard Long

02 Extension Length

8mm
Natural Active Glamour Extra

03 Choose Profile

Total Selection
20 mm

Signature Salon Long

Shape Encyclopedia

Almond

Elongates fingers. Very durable. Requires at least a medium extension to taper properly.

HIGH DURABILITY

Stiletto

Bold and edgy. Most prone to breakage. Not recommended for extensions under 15mm.

FASHION ONLY

Square

Classic and strong. Best for short-to-medium lengths. Can make fingers appear wider.

DAILY PRACTICAL

Coffin

Modern favorite. Provides a slim look with a flat tip. Requires professional sculpting.

TRENDING

How to Measure

1

Measure the Base

Place a ruler at the cuticle and measure to where your skin ends. This is your "Nail Bed".

2

Define Extension

Decide how many millimeters you want the tip to extend past your finger. This is the "Extension".

Pro Maintenance

  • Fills every 2-3 weeks recommended.
  • Use cuticle oil daily to prevent lifting.
  • Avoid using nails as "tools" for opening cans.

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Frequently Asked Questions

How do I measure my nail bed accurately?

The best way is to use a piece of clear tape across the widest part of your natural nail, mark the edges with a pen, then remove the tape and measure the marks against a millimeter ruler.

Which nail shape lasts the longest?

Almond and Round shapes are the most durable because they lack sharp corners that easily snag or chip. They distribute stress more evenly across the nail extension.

What is "Extension" vs "Total Length"?

"Extension" refers only to the part of the nail that grows past your fingertip. "Total Length" includes your natural nail bed plus the extension. Most technicians charge based on the extension length.

Are these measurements standard for salons?

While millimeter measurements are precise, many salons use "Short, Medium, Long" categories. Use this tool to find your preferred mm length so you can tell your tech exactly what you want.

How often should I get a refill?

To maintain the structural integrity of the extension, refills are recommended every 2 to 3 weeks. Waiting too long shifts the "apex" or strength point of the nail too far forward, increasing breakage risk.

Can I use these for press-on nails?

Yes! This is perfect for ordering custom press-on sets. Most press-on artists list their lengths in millimeters, so you can visualize the look before clicking "buy".

What shape is best for short fingers?

Almond and Coffin shapes are highly recommended for shorter fingers as their tapered sides create a vertical illusion that makes the fingers appear longer and more slender.