What computed fields are
Computed fields are Airtable field types that calculate their values automatically. You cannot edit them directly in Airtable or in Filla. On forms, they can be displayed to respondents for reference, but respondents cannot change their values.Supported computed field types
| Airtable field type | What it shows |
|---|---|
| Auto Number | Sequential record number automatically assigned by Airtable |
| Formula | Result of an Airtable formula |
| Rollup | Aggregated value from linked records |
| Count | Count of linked records |
| Lookup (Multiple Lookup Values) | Values looked up from linked records |
| Created Time | When the record was created |
| Last Modified Time | When the record was last modified |
| Created By | Who created the record |
| Last Modified By | Who last modified the record |
| Button | Airtable button field (displayed as read-only) |
| External Sync Source | Source identifier for externally synced records |
| AI Text | AI-generated text value |
| Manual Sort | Internal sort position |
Why display computed fields?
Displaying computed fields on a form is useful when respondents need context from calculated values before making decisions. For example:- Show a Rollup field that totals previous order amounts so a respondent knows how much they’ve spent
- Show a Formula result like “Approval Status” so the respondent knows the current state of a record before editing it
- Show a Count of linked records so the respondent knows how many items are already attached
How they work in the editor
Add a computed field to your form the same way you’d add any other field. Drag it from the field palette or click to add it. In the canvas, it shows a “Read-only” tag to indicate it cannot be edited. The settings panel for computed fields shows a simplified set of options:- Label: the field name shown on the form
- Description: optional help text
- Show/hide rules: conditional visibility still works on computed fields
Common questions
Can computed fields be used in conditional logic?
Can computed fields be used in conditional logic?
Yes. You can reference computed field values in show/hide conditions and other filter rules, the same as editable fields.
What if a formula field returns no value?
What if a formula field returns no value?
The field will show as blank on the form. No error is shown. It displays nothing until the formula produces a result.
Can I use a formula field value in variable text?
Can I use a formula field value in variable text?
Yes. Computed fields can be referenced with
@ mentions in field labels, descriptions, text blocks, and email templates.