Calculate total, generate a URL, etc.

Include formula fields in your miniExtensions form. For example, show a calculated price total or generate a URL. Let your employees/customers see their input results immediately. You can enable this feature by turning on ‘Compute Mode‘ in your form’s settings.

In addition to enabling form fields that require computation, including formula fields and rollups. This feature also allows users to save their progress automatically in Airtable so they can pause and resume without worrying about data loss. You can also require user confirmation before the final form submission.


Here is a form that has a formula field to show the order’s total.

💡 Tip

You can combine this feature with our Stripe integration to build an entire checkout solution with payment!

Use Cases

This extension can be useful in a lot of scenarios. You can use it to build:

  • Invoice/estimate
  • Shopping cart
  • URL generator.
  • Use it as a Data Validator
  • Instant quote calculator

If you click on the sample view below, you’ll see the table that’s used for the demo above.


Last Updated

Supported features

Third Party Integration

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Site visitor
Site visitor

The secondary line item form has calculation mode on, but the calculation it shows on the form is based on a rollup value from the main record. When the form is submitted, the calculation works well. But when calculated before submission, it behaves as if it was not linked to the main record. Is this the normal expected behavior?

Site visitor
Site visitor

We are planning to use this extension to present real estate listings. We want to add live calculator containing the data from Airtable.

Site visitor
Site visitor

I switched on the Computed field which contains a formula from Airtable. But a new record gets created when it is only computed in the form. Before I see the success message.

Client Portal for Airtable

Share records with people outside of your organization. Limit them to only see their records and allow them to update some parts of the records.


Most frequent questions and answers

No, regardless of how many collaborators you have in Airtable, you only need to pay for one miniExtensions subscription then you can have unlimited users access the extensions you build with no extra fees. Learn more

There is no limit on how many bases you can install miniExtensions on. Learn more


We offer limited and unlimited plans. To learn more about how our limits work, see this article.

We have instructional videos for how to use each one of our extensions on the product page. They guide you step-by-step of how to set them up.


We’re not offering discounts at this time. And we don’t require any commitment.


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