While building a recipe custom post type with ACF, I noticed that ACF does not currently support calculated or concatenated field values.

It would be useful to have a way to automatically calculate one field from others. For example:

Preparation time: 15

Cook time: 30

Total time: automatically calculated as 45

This would be especially helpful with ACF’s schema output support, since calculated values could be mapped more accurately to the appropriate schema properties.

A concatenation feature would also be valuable. For example, a recipe yield could be split into two fields:

Yield quantity: 4

Yield unit: slices

ACF could then combine them into a single output value, such as 4 slices, for use in schema markup and other front-end applications.

Finally, calculated fields should optionally be marked as read-only or not editable. A read-only field could display its calculated value in a visually distinct style, such as being slightly greyed out, while preventing content editors from manually changing it.

These additions would make ACF Pro more powerful and provide greater flexibility for structured data, dynamic content, and editorial workflows.