Built for Shopify

Size Chart App for Shopify.

One of 40+ apps inside Vitals.

Install App 7-day free trial
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4.9 ★★★★★ 2,800+ App Store reviews
PROUDLY BOOSTING THEIR SALES WITH VITALS
the skinnyfood co. Alex + Nova EZ Detangler Nuts 'N More LeatherUp Stock SupplierLittle Dresser the skinnyfood co. Alex + Nova EZ Detangler Nuts 'N More LeatherUp Stock SupplierLittle Dresser
SIZE CHART

What is the Size Chart app?

The Vitals Size Chart app adds a Size Chart button to your product pages that opens your chart in a pop-up, so shoppers can check their size before they buy.

−23%
size-related returns with a chart in reach
Trusted at scale
31k+
happy merchants
1,000+ Shopify Plus brands
4.9 ★★★★★ 2,800+ App Store reviews
Conversion
+54%
on the same traffic
2.06% before → 3.17% with Vitals
Order value
+42%
on orders with an upsell
$82.6 → $117.3 with an upsell

Why add a size chart?

Shoppers who can check their size are less likely to guess, and you answer the sizing question once for every product.

01
Fewer sizing emails

Answer "which size am I?" on the product page instead of in your inbox.

Classic Tee$29.99
SMLXL
Add to cart
Size chart
02
One chart, many products

Update a chart once and every product that uses it changes.

Tops1 chart
SizeChestWaist
S3630
M3832
Used on
03
No extra app

Add size charts without installing another app.

SCRIPTS ON YOUR STORE
size-chart-app.jsREMOVED
vitals.js40+ apps

How do I make a chart?

You paste a table, build one in the editor or upload an image of the chart you already have.

01
Table builder

Paste a table or add the rows and columns for your sizes and measurements.

SizeChestWaist
S3630
M3832
L4034
+ Row+ Column
02
Image upload

Upload an image of your chart or pick one from Shopify Files.

Size chart×
CHEST
Shopify Files
03
How to measure

Add a guide with text and pictures above or below the chart.

Size chart×
SizeChestWaist
M3832
L4034
How to measureChest: around the fullest part

Can it tell shoppers their size?

Yes. Turn on the size calculator and shoppers enter their measurements to see the size that fits.

01
Shopper measurements

Ask for chest, waist or the other measurements in your chart.

Size chart×
Chest97cm
Waist82cm
What's my size?
02
Recommended size

Show the size that fits, read straight from your table.

Size chart×
Your sizeM
SizeChestWaist
M3832
L4034
03
cm or inches

Let shoppers switch units while they type.

Size chart×
Unitscmin
Chest38in
Waist32in

Which products get a chart?

Any you choose: give a chart to all products, or to the products and collections it fits.

01
All products

Show one chart on every product page.

Show on
All products
Specific products
02
Products or collections

Pick the products and collections a chart belongs to.

CollectionT-shirts
Classic Tee
Chinos
03
Chart priority

Let a product's own chart take over from a collection's.

Tee chartProduct
Shown
Tops chartCollection
Skipped
04
Drafts

Save a chart as a draft and publish it when it's ready.

TopsPublished
BottomsPublished
OuterwearDraft

Can I make it match my store?

Yes. You choose the button, the table design, the pop-up colours and where the button sits.

01
Button

Pick an icon, a colour and underlined or plain text.

Icon
Size chartUnderlined
Size chartColour
Size chartPlain
02
Table design

Choose borders, thickness and striped rows.

SizeChestWaist
S3630
M3832
SizeChestWaist
M3832
L4034
XL4236
03
Pop-up colours

Set the background and text colours.

Size chart×
SizeChestWaist
M3832
L4034
BackgroundText
04
Position

Place the button by the description, the buy buttons or any element you pick.

Place the button
By the description
By the buy buttons
Custom CSS selector
05
Translations

Translate the button text and each chart's title.

ENSize chart
FRGuide des tailles
DEGrößentabelle

Which other Vitals apps help shoppers pick a size?

Back in Stock, Product Reviews and Live Chat, all in the same Vitals subscription, so you don't install or pay for three more apps.

Back in Stock
Let shoppers ask for an alert when their size is back.
MARKETING
Product Reviews
Show what other shoppers say about the fit.
TRUST
Live Chat
Answer the sizing questions your chart doesn't.
USER EXPERIENCE
See all 40+ apps Every tool is in the same subscription.

What do merchants say about Vitals?

Merchants rate Vitals 4.9 stars across 2,800+ reviews on the Shopify App Store.

★★★★★

“We've been using Vitals for our store at Bigksport and it replaced at least 6 separate apps. The product reviews, upsells, shipping estimates, sticky add to cart and visitor replays all work seamlessly together. The fact that it doesn't slow down your store while doing all of this is the biggest win.”

Bigk Belgium · Over 1 year using the app
★★★★★

“This app has been a game changer - deleted at least 5 other apps and saved over $100 per month by using just this app. Easy to configure and heaps of options to improve numerous areas of the site.”

Addict Tackle Australia · Over 1 year using the app
★★★★★

“It not only added several useful functionalities, but it also drastically reduced the cost of all previous apps by 90%, and it increased our website speed drastically. Finally we got a better conversion rate and a better website for a very small price and all in one app.”

Karma Yoga Shop France · 7 months using the app
★★★★★

“This REALLY IS... about the only app you will need! Does everything I needed it to do and more. I was also able to delete 3 app speeding up my store! Our AOV has improved as well as our conversion rates.”

Bad Dog Gang United States · 9 days using the app
★★★★★

“Vitals combines powerful features like upsells, reviews, and conversion tools in one simple app. It replaces multiple apps, saves costs, and is super easy to use. One of the best apps on the Shopify App Store!”

Airpaq GmbH Germany · About 1 year using the app
★★★★★

“We've been using Vitals for our store at Bigksport and it replaced at least 6 separate apps. The product reviews, upsells, shipping estimates, sticky add to cart and visitor replays all work seamlessly together. The fact that it doesn't slow down your store while doing all of this is the biggest win.”

Bigk Belgium · Over 1 year using the app
★★★★★

“This app has been a game changer - deleted at least 5 other apps and saved over $100 per month by using just this app. Easy to configure and heaps of options to improve numerous areas of the site.”

Addict Tackle Australia · Over 1 year using the app
★★★★★

“It not only added several useful functionalities, but it also drastically reduced the cost of all previous apps by 90%, and it increased our website speed drastically. Finally we got a better conversion rate and a better website for a very small price and all in one app.”

Karma Yoga Shop France · 7 months using the app
★★★★★

“This REALLY IS... about the only app you will need! Does everything I needed it to do and more. I was also able to delete 3 app speeding up my store! Our AOV has improved as well as our conversion rates.”

Bad Dog Gang United States · 9 days using the app
★★★★★

“Vitals combines powerful features like upsells, reviews, and conversion tools in one simple app. It replaces multiple apps, saves costs, and is super easy to use. One of the best apps on the Shopify App Store!”

Airpaq GmbH Germany · About 1 year using the app
★★★★★

“The best thing by far is navigating and monitoring and updating all these features from one app and not have 15 different apps + it helps add more functionality on the site without massively impacting the load speed.”

Dear Barber United Kingdom · About 2 months using the app
★★★★★

“Amazing product and amazing support. Using this one app instead of multiple apps has really increased the speed of my website.”

3kingsmerch United States · Almost 2 years using the app
★★★★★

“For sure one of the best existing apps. I have around 9 apps installed already and the Speed Score did not dropped at least 1%. It is super easy to install & use.”

Nutriland Romania · 19 days using the app
★★★★★

“Is doing everything I'd hoped and more. The product bundling is very slick and it has replaced about 4 other apps, two of them paid ones.”

KASIE's Room Australia · 2 months using the app
★★★★★

“So many amazing apps in 1. If I could only choose 1 app, this would be it. The Visitor replays has been priceless when it comes to dialing in the user experience.”

Mermaidcat Designs United States · 12 days using the app
★★★★★

“The best thing by far is navigating and monitoring and updating all these features from one app and not have 15 different apps + it helps add more functionality on the site without massively impacting the load speed.”

Dear Barber United Kingdom · About 2 months using the app
★★★★★

“Amazing product and amazing support. Using this one app instead of multiple apps has really increased the speed of my website.”

3kingsmerch United States · Almost 2 years using the app
★★★★★

“For sure one of the best existing apps. I have around 9 apps installed already and the Speed Score did not dropped at least 1%. It is super easy to install & use.”

Nutriland Romania · 19 days using the app
★★★★★

“Is doing everything I'd hoped and more. The product bundling is very slick and it has replaced about 4 other apps, two of them paid ones.”

KASIE's Room Australia · 2 months using the app
★★★★★

“So many amazing apps in 1. If I could only choose 1 app, this would be it. The Visitor replays has been priceless when it comes to dialing in the user experience.”

Mermaidcat Designs United States · 12 days using the app

Frequently Asked Questions

4.9 ★★★★★
2,800+ App Store reviews
31,000+ happy merchants

Paste a table, build one in the Size Chart editor, or upload an image of the chart you already have. You can add a How to measure guide to either.

Add a size chart to your product pages.

One install. One bill. 7-day free trial.

One script
One team
One bill