Measuring a necklace is simpler than it first looks. Knowing how do you measure a necklace without overcomplicating it means looking at two numbers, your neck size and the drop you want. Get those right, and you never order something that lands in the wrong place.
At Luke Zion Jewelry, every chain is listed in a range of lengths. The right fit starts with your measurement, not a number grabbed off a chart.
What You Need Before You Measure
You only need a few things on hand, and most are already in a drawer somewhere.
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Flexible tape measure: The sewing or tailoring kind. This is your best option for an accurate read.
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String and a ruler: A solid backup if you do not own a tape measure.
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Mirror: Helps you check where the chain actually sits at the collarbone.
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Pen and paper: Write your number down so you are not guessing later.
A couple of minutes is all this takes. By the end, you will have your neck size and the necklace length that matches it.
How to Measure Your Necklace Size in Four Steps
Measuring starts at your neck, not at the chain. Getting your exact neck measurements breaks down into four quick steps, done in order.
Step 1: Wrap the Tape Around Your Neck
Sit it at the spot where you want the chain to rest, which is collarbone level for a standard fit. Keep two fingers between the tape and your skin so it is not pulled tight.
Step 2: Read the Number and Write It Down
This is your neck circumference, the same number doctors measure just below the Adam's apple, not your necklace's length. These two are not the same, and mixing them up is the most common sizing mistake guys make.
Step 3: Add Two to Four Inches
That turns your neck size into a wearable length with natural drape. A 16-inch neck with an 18-inch chain sits snug at the base. Bump it to 20 inches, and it drops to an easy collarbone fit.
Step 4: Use String If You Have No Tape
Lay it around your neck, pinch where it meets, then lay it flat against a ruler and read the length. Keep the string straight when you measure, never curved, or the number will come out short.
Match Your Measurement to a Chain Length
Take the number you just measured and see where it falls among the standard men's chain lengths. This chart is the quick reference for an average build.
|
Length (in) |
Length (cm) |
Where It Sits |
|---|---|---|
|
16" |
40.5 cm |
High on the neck, snug, best for slim necks |
|
18" |
45.5 cm |
Base of the neck, above most shirt collars |
|
20" |
51 cm |
Right at the collarbone, the most popular men's length |
|
22" |
56 cm |
Just below the collarbone, room for a pendant |
|
24" |
61 cm |
Mid sternum, balances heavier chains |
|
30" |
76 cm |
Below the chest, a bold look worn over clothing |
These assume an average build, and proportions drive how a necklace reads on a man. On the shorter side, drop one to two inches from the standard pick. If you are taller, add one to two inches to hit the same spot.
Common Measuring Mistakes and How to Avoid Them
Even guys who have bought chains before get this wrong. We cover these slip-ups on the LZJ YouTube channel because the same few show up again and again.
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Measuring too tight: A snug tape gives a number that feels fine standing still, but chokes once you move. Keep two fingers between the tape and your neck when you read it.
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Forgetting the clasp: Most clasps add half an inch to an inch of total length. If you are measuring a chain you already own, lay it flat and include the clasp in the number.
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Measuring a curved chain: A chain read while it is bent always comes out short. Lay it straight on a flat surface first.
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Measuring at the wrong spot: If you want the chain at your sternum, measure at your sternum, not your collarbone. Your measuring point should match where you actually want it to sit.
Get those four right, and the length you order is the length you get. If a chain you already own still lands long, you can shorten it without cutting the links.
Why Weight Makes a Chain Sit Lower
The number on the tag is not the whole story. Weight pulls a chain down, so two pieces of the same length can land in different spots on your chest.
A 20-inch, 5 mm Cuban chain rides lower than a 20-inch thin rope. A solid pendant drops another inch or so.
For a heavy piece, size down one to two inches from the number you measured. If you want a Cuban specifically, our Cuban link sizing guide lays out the exact lengths.
That is the one thing a length chart cannot tell you. The metal matters just as much, and every chain we sell is solid 925 sterling silver sourced from trusted Italian manufacturers.
Get the Measurement Right the First Time
Sizing a necklace is not guesswork, and it does not start with a chart. It starts with your neck. Measure it, add a couple of inches for drape, then check that number against where you want the chain to land.
Account for the style too, since a heavier chain always rides lower than a thin one at the same length.
Nail the measurement once, and every chain you buy after sits right. Browse our sterling silver chain collection; every piece is listed with its exact length, so you get the fit you measured for. Everyone is solid silver, made for everyday wear.
FAQs About Measuring a Necklace
What If My Measurement Falls Between Two Lengths?
Round up for an easy drape or down for a snug fit. Both land in a comfortable range.
How Do I Pick a Length as a Gift Without Measuring Him?
Go by his build and how he usually dresses. A mid-range length is the safest call when in doubt.
Should I Measure My Neck Over a Shirt or on Bare Skin?
Measure on bare skin or over a thin tee for the truest read. A thick collar or hoodie adds bulk that throws off your number.
Will a Silver Chain Stretch or Change Length Over Time?
No. Solid sterling silver holds its shape, so the length you buy is the length it stays.