Grow

Inches or centimeters, the shopper’s choice.

Half your traffic thinks in centimeters and the other half doesn’t. A chart that shows only one of them makes the other half do arithmetic on a phone, which mostly means they guess instead.

Install free on Shopify Grow and up

Size chart

Size	Chest	Length
S	36 in	27 in
M	38 in	28 in
L	40 in	29 in

Try it. The toggle is live, and shoppers get the same one.

Small feature, unusually large effect

We guess by region

Shoppers in the US and UK see inches. Everyone else sees centimeters. Right most of the time, before anyone touches anything.

One tap changes it

The toggle sits on the chart itself rather than in a settings menu, because nobody opens a settings menu to read a size chart.

We remember the choice

It persists across products and across the session, so a shopper switching to centimeters does it once, not on every product page.

What you get.

Sensible rounding

Conversions round the way garment specs actually round: 91.4 cm, not 91.44 cm, and not a bare 91 that loses half an inch of accuracy.
Applies to the quiz too

Height and weight inputs switch to centimeters and kilograms alongside the chart, so shoppers aren’t converting their own measurements.
Included with unlimited charts

Ships on Grow and up alongside every other placement option.
Inherits your theme styling

The toggle picks up your fonts, colors, and border radius so it doesn’t read as a bolted-on widget.

Specifics

Units: in / cm
Default: By shopper region
Memory: Session and cross-product
Applies to: Chart and quiz
Rounding: Garment-spec
Available on: Grow and up

Questions we get.

Yes. You can pin a default per market, or hide the toggle entirely if your catalog only makes sense in one system. Most stores leave it on.

The rest of it.

All features

Stop making shoppers do maths.

The unit toggle ships on Grow and up. Install free first and add it when you upgrade.

Install free on Shopify Free plan available · 14-day trial on paid plans