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Guide · Size charts
How to Make a Necklace Length Chart From Real Measurements
Chain length is the most common necklace question, and a good chart answers it before anyone asks. This guide shows how to make a necklace length chart from measurements you can stand behind.
Published · Updated · Image25 Jewelry Studio
Open the free chart makerIn short
To make a necklace length chart, measure each chain you sell end to end including the clasp, round consistently, list only those lengths, label each in inches and centimeters with its common name, and add a note that positions are typical. Then use the same chart on every necklace listing.
- Measure
- End to end, clasp included
- Show
- Only lengths you sell
- Label
- Inches, centimeters, name
- Note
- Positions are typical
01
Why a Necklace Length Chart Helps
Numbers alone do not help most buyers. “18 inches” means little until you see that it sits at the collarbone while 20 inches falls a little lower. A chart turns lengths into positions, so buyers choose the right one the first time.
A chart also makes your shop consistent. When every necklace listing uses the same chart, buyers learn your lengths once and trust them across the collection. It answers the question before it becomes a message, and it reduces returns for the wrong length.
The chart is only as good as the measurements behind it. This guide covers how to measure, which lengths to include and how to present them honestly.
- Turns
- Numbers into positions
- Reduces
- Wrong-length returns
- Needs
- Careful measurement
02
How to Make a Necklace Length Chart, Step by Step
Five steps from chain to chart.
- 1
Measure every chain end to end
Lay the chain straight on a flat surface without stretching it. Measure from the end of one clasp part to the end of the other, so the clasp is included, as buyers expect.
- 2
Measure extenders separately
An extender adds a range, not a new base length. Note it on its own, for example “18 in plus 2 in extender”.
- 3
Round the same way every time
Round to the nearest half inch or whole centimeter and use the same rounding in the chart and the listing text.
- 4
Choose only the lengths you sell
A chart full of lengths you do not offer confuses buyers. Show the two to four lengths in stock, plus any custom length you make to order.
- 5
Label clearly and add one honest note
Label each length in inches and centimeters with its common name, and add a short note that positions are typical for an average adult.
03
Standard Lengths to Include
Common lengths with their usual names and positions.
| Length | Centimeters | Common name | Typical position |
|---|---|---|---|
| 14 in | 35 cm | Choker | Tight at the neck |
| 16 in | 40 cm | Choker | Base of the neck |
| 18 in | 45 cm | Princess | At or below the collarbone |
| 20 in | 50 cm | Matinee | A little below the collarbone |
| 24 in | 60 cm | Matinee | Upper chest |
| 30 in | 76 cm | Opera | At or below the bust |
04
Present Necklace Lengths Buyers Can Trust
Presentation is where most charts go wrong.
Keep the outline neutral
A simple bust outline keeps attention on the lengths. Photos of a real model can mislead because every body differs.
Match the listing text
The lengths on the chart must match the variants buyers can select. Update both together.
Mention pendant drop
A pendant hangs below the chain. If it is large, state its height so buyers can picture the full drop.
05
Length Chart Do and Avoid
Do
- Measure each chain yourself
- Include the clasp in the length
- Show both inches and centimeters
- Note that positions vary between people
- Use one chart across all necklaces
Avoid
- Copying a supplier chart without measuring
- Showing lengths you do not sell
- Promising where a chain sits on every body
- Mixing rounded and exact numbers
- Leaving the length out of the listing text
06
Help Buyers Who Are Still Unsure
A few simple tips you can add to listings.
Measure a necklace you own
Suggest buyers measure a favorite necklace end to end and choose the closest length.
Use a soft tape measure
A soft tape measure around the neck, read where the pendant should sit, gives a personal length to compare with the chart.
Offer an extender
A short extender covers buyers between two lengths and reduces exchanges.
Show it worn
A worn image at the length you sell adds context; keep the chart for the comparison.
07
Common Measuring Mistakes
Errors that make charts unreliable.
Stretching the chain
Pulling a chain taut adds length. Lay it flat and straight without tension.
Leaving out the clasp
Buyers expect the full length, clasp included.
Measuring a curve
A chain in a circle measures short. Straighten it first.
Converting rounded numbers
Convert from the measured value, then round once, or inches and centimeters will disagree.
08
Inches and Centimeters at a Glance
Rounded conversions for common lengths.
| Inches | Centimeters |
|---|---|
| 14 in | 35 cm |
| 16 in | 40 cm |
| 18 in | 45 cm |
| 20 in | 50 cm |
| 22 in | 55 cm |
| 24 in | 60 cm |
| 30 in | 76 cm |
| 36 in | 91 cm |
09
From Chart to Listing
Once the chart is made, add it to every necklace listing that sells those lengths, usually as the third or fourth image. Repeat the lengths in the listing text and in each variant name, so the chart, the dropdown and the description all say the same thing. When you add or retire a length, update the chart the same day, because an outdated chart is worse than none. Keep the source measurements in a simple sheet so anyone on your team can recreate the chart.
Before you publish
Your Measurements Are the Chart
A chart is only a picture of your numbers. Measure carefully, show only what you sell and be honest that positions vary. That is what makes buyers trust it.
Questions
Make a Necklace Length Chart FAQ
How do I make a necklace length chart?
Measure each chain end to end including the clasp, choose the lengths you sell, label each in inches and centimeters with its common name, and draw them on a neutral bust outline. The free chart maker does the drawing for you.
How do I measure chain length?
Lay the chain straight without stretching and measure from the end of one clasp part to the end of the other. List any extender separately.
Which lengths should my chart show?
Only the lengths you sell, usually two to four, such as 16, 18 and 20 inches. Extra lengths you do not offer confuse buyers.
Should I show inches or centimeters?
Both. Lead with the unit most of your buyers use and show the other beside it.
Why does my chart need a note about positions?
Because height, neck size and build change where a chain falls. A short note sets honest expectations.
Can I use a photo of a model instead?
A worn photo adds context, but one body cannot show every length fairly. Use a neutral chart for comparison and a worn photo as a supporting image.
Make a Necklace Length Chart in Minutes
Measure your chains, then tick the lengths you sell in the free chart maker and download the PNG.
Open the free chart maker