Choosing the right size of necklaces can completely change how a piece of jewelry looks, feels, and layers with your outfit. A necklace that is too short may feel tight or sit higher than expected, while a necklace that is too long may not frame the neckline the way you want. The best necklace size depends on length, chain thickness, pendant style, neckline, body frame, and how you prefer your jewelry to sit.
This necklaces size guide explains common necklace lengths, chain widths in millimeters, and how to choose the best fit for everyday wear, layering, gifting, and statement styling.

Necklace Size Chart by Length
Necklace length is usually measured in inches, but many jewelry buyers also compare sizes in centimeters. The chart below shows the most common necklaces size options and where they typically sit on the body.
|
Necklace Length |
Length in CM |
Typical Fit |
Best For |
|
14 inches |
35 cm |
Fits closely around the neck |
Chokers, minimal styling |
|
16 inches |
40 cm |
Sits at the base of the neck |
Petite chains, everyday wear |
|
18 inches |
45 cm |
Falls near the collarbone |
Classic necklaces, pendants |
|
20 inches |
50 cm |
Falls below the collarbone |
Layering, medium pendants |
|
22 inches |
55 cm |
Sits around the upper chest |
Statement chains, longer pendants |
|
24 inches |
60 cm |
Falls mid-chest |
Bold styling, layering |
|
30 inches |
76 cm |
Falls lower on the chest |
Long necklaces, dramatic looks |
For most people, an 18-inch necklace is the most classic and versatile choice. It usually sits around the collarbone and works well with pendants, delicate chains, and everyday jewelry. A 16-inch necklace creates a slightly shorter look, while 20-inch and 22-inch necklaces offer a more relaxed drop.
Explore more: What Necklace to Wear with Strapless Dress: Elevated Styling Made Simple
Different Size Necklaces and How They Fit
Understanding different size necklaces helps you choose jewelry that matches your outfit and personal style.
14-Inch Necklace
A 14-inch necklace is commonly known as a choker length. It sits high and close around the neck. This size works best for open necklines, off-shoulder tops, and layered looks where the shortest necklace creates the first point of focus.
16-Inch Necklace
A 16-inch necklace usually sits at the base of the neck. It is slightly more relaxed than a choker but still gives a clean, close-fitting look. This size is popular for minimal chains and small pendants.
18-Inch Necklace
An 18-inch necklace is considered a standard necklace length. It usually falls near the collarbone, making it one of the safest choices for gifting. This size works well with most necklines and is ideal for daily wear.
20-Inch Necklace
A 20-inch necklace sits slightly below the collarbone. It gives more breathing room and works well for layering with shorter chains. This size is also a good option for medium pendants.

22-Inch to 24-Inch Necklace
Necklaces in the 22-inch to 24-inch range fall lower on the chest. These sizes are often used for statement pieces, larger pendants, or relaxed styling. They pair well with high necklines, sweaters, and simple tops.
30-Inch Necklace and Longer
A 30-inch necklace creates a long, elegant line. It is often worn over clothing and can be styled alone or layered with shorter necklaces. Longer chains are ideal when you want a more dramatic jewelry look.
Explore more: How to Make a Necklace Shorter: 7 Easy Ways to Perfect Your Chain Length
How to Measure Your Necklace Size
To find the right size of necklaces, you can measure either your neck or a necklace you already own.
Measure Your Neck
Use a soft measuring tape and wrap it around the base of your neck. Keep the tape comfortable, not tight. Add about 2 inches if you want a close necklace fit, or add 4 inches for a standard everyday necklace length.
For example, if your neck measures 14 inches, a 16-inch necklace will sit close to the base of your neck, while an 18-inch necklace will fall closer to the collarbone.
Measure an Existing Necklace
Lay a necklace flat and measure it from clasp to clasp. This is one of the easiest ways to find your preferred necklace length. If you already love where a certain chain sits, use that measurement as your reference when shopping.
Explore more: How to Choose the Perfect Necklace Size: A Complete Style & Sizing Blueprint

Choosing the Size of Necklaces by Styles
Choosing the right necklace size depends on the style, neckline, body shape, and how you want the jewelry to sit. Some necklace styles are designed to rest close to the neck, while others fall lower on the chest for a more elegant or layered look.
|
Necklace Style |
Common Length |
Best For |
Style Tip |
|
Collar Necklace |
12–13 inches |
Open necklines, off-shoulder tops |
Sits tightly around the neck for a bold look. |
|
Choker Necklace |
14–16 inches |
V-neck, scoop neck, strapless outfits |
Great for highlighting the neckline. |
|
Princess Necklace |
17–19 inches |
Everyday wear, pendants |
The most versatile necklace size. |
|
Matinee Necklace |
20–24 inches |
Business wear, high necklines |
Adds length and elegance to the upper body. |
|
Opera Necklace |
28–36 inches |
Formal outfits, evening wear |
Can be worn long or doubled. |
|
Rope Necklace |
36+ inches |
Layered styling, statement looks |
Ideal for creative styling and layering. |
|
Pendant Necklace |
16–22 inches |
Casual and dressy outfits |
Choose the length based on where you want the pendant to sit. |
|
Pearl Necklace |
16–24 inches |
Classic, bridal, elegant looks |
Shorter pearls feel classic; longer pearls feel more refined. |
|
Layered Necklace |
14–24 inches |
Modern everyday styling |
Mix different lengths to avoid tangling and create depth. |
How to Choose the Right Necklace Size
For a simple everyday necklace, a 17–19 inch princess necklace is usually the safest choice because it sits near the collarbone and works with most outfits.
For a more fitted and modern look, choose a 14–16 inch choker necklace. This style works best when you want to draw attention to the neck and collarbone.
For formal outfits or elegant styling, a 20–24 inch matinee necklace or longer opera necklace creates a more sophisticated effect. These lengths are also useful for layering with shorter chains.
Final Thoughts
Finding the right size of necklaces is about more than choosing a number. The best necklace should match your neckline, pendant size, chain thickness, and personal comfort. For a classic everyday piece, 18 inches is a reliable choice. For a close, modern look, choose 14 to 16 inches. For layering or statement styling, consider 20 inches and above.
Use this necklaces size guide as a reference when shopping so you can choose a necklace that feels comfortable, looks balanced, and fits your personal style.
FAQ
What is the standard size of necklaces?
The standard size of necklaces is usually 18 inches, or about 45 cm. This length typically sits near the collarbone and works well for everyday chains, pendants, and most necklines. It is also one of the safest necklace sizes for gifting.
How do I know what necklace size I need?
To find your necklace size, measure around the base of your neck with a soft measuring tape. Add about 2 inches for a close fit or 4 inches for a more classic necklace length. You can also measure a necklace you already own and like.
What are the most common necklace sizes?
The most common necklace sizes are 14, 16, 18, 20, 22, and 24 inches. A 14-inch necklace usually fits like a choker, 16 inches sits near the base of the neck, 18 inches sits near the collarbone, and 20 inches or longer falls lower on the chest.
What necklace size is best for everyday wear?
An 18-inch necklace is usually best for everyday wear because it is comfortable, versatile, and easy to style with different outfits. A 16-inch necklace is better for a shorter, cleaner look, while a 20-inch necklace gives a more relaxed fit.

