Cm to inch dropdown

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Topic summary

Main request: add a dropdown/toggle to convert displayed product sizes from centimeters to inches, positioned above the existing size selector. No size chart—just a simple switch.

Context provided: an example image and a product URL to show desired placement and behavior.

Assessment: implementation requires theme code changes; the current size selector may be generated by an app, which can complicate direct edits. A developer is likely needed.

Proposed approaches:

  • DIY: create duplicate products (cm vs inch), relate them via a metafield (custom data field), and insert a link using a custom-liquid block (theme area for custom code).
  • Custom development: integrate a cleaner conversion within variants (product options) or line-item properties; app-specific adjustments might be required.

Current status: the requester has contacted a developer (email sent to a Shopify partner) to pursue customization.

Open questions: whether the size selector is app-based or theme-native; exact placement and UX (dropdown vs button); scope of code changes.

Resolution: not yet reached; discussion remains open pending technical details and development work.

Summarized with AI on December 10. AI used: gpt-5.
1

Hello everyone ,

I would like to add a dropdown menu that converts my sizes from centimeters to inches.

Not size charts or guides, just a button or dropdown menu that I can add above the product sizes.

Thanks

2

Like this question centimeter inch converter

3

Within product options? Where would you like to have it?

Finally, you will need to adjust the code here. Depending on where you want it to appear, you may need a developer.

4

like this

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10000139571080×1044 52.4 KB

5

Yes some code will be needed. A developper why not :wink:

6

Where exactly can this be found? Product options? Filters? Only as an image?

More detailed information is needed here.

7

Over the dorpdown of sizes that switch them in inch : https://www.idealart.fr/en/products/les-gardiens-du-jour-endormi

8

Drowndown for the product, probably the variants or a simple line item. However, the code says that this is an app.

You can only edit something like this in the code. To do this, you need a developer.

9

Hi @charlem21 :waving_hand: I’m @PaulNewton shopify-partner I provide theme customization services among others.
There’s various ways to approach this, if an app is also being used that can be a problem but not always insurmountable.

If you need to DIY free this crudest method is with duplicate products and just use a metafield to relate the products then use a custom-liquid block or similar to put the link to the duplicate products in the product info areas.

Or you can reach out to me for customization services for a cleaner implementation.
CLICK my profile-pic or visit my profile on the forums
ALWAYS include context in new communications, e.g. reference urls, posts urls, etc

11

I sent you an email.