# Can I create virtual fields?

**URL:** <https://speciforum.org/t/can-i-create-virtual-fields/2818>\
**Category:** Get Help\
**Created:** [September 1, 2025, 2:08pm UTC](https://speciforum.org/t/can-i-create-virtual-fields/2818 "2025-09-01T14:08:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Marion](https://avatars.discourse-cdn.com/v4/letter/m/48db29/32.png) [@Marion](https://speciforum.org/u/Marion)\
**Post date:** [September 1, 2025, 2:08pm UTC](https://speciforum.org/t/can-i-create-virtual-fields/2818/1 "2025-09-01T14:08:30Z")

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I would like to know if it is possible to create our own virtual fields.

For example, in the Loan table, I would like to add a “Total value (€)” field that automatically calculates the insurance value of a loan by adding up the value of each preparation via a “Value (€)” field from the Loan Preparations table.

 ![image](https://canada1.discourse-cdn.com/flex029/uploads/specifysoftware/original/2X/4/472153b4bcda5006d1a311caf70a27007d883f67.png)

Is it possible to do that?

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**Author:** ![Grant](https://yyz1.discourse-cdn.com/flex029/user_avatar/speciforum.org/grant/32/4255_2.png) [@Grant](https://speciforum.org/u/Grant)\
**Post date:** [September 2, 2025, 8:42pm UTC](https://speciforum.org/t/can-i-create-virtual-fields/2818/2 "2025-09-02T20:42:15Z")

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Hi @Marion,

Thanks for your question!

Users cannot create new [virtual fields](https://speciforum.org/t/virtual-fields/2272) at this time. However, you can integrate with the [Specify APIs](https://speciforum.org/t/how-to-use-the-specify-api-as-a-generic-webservice/181) to regularly update a read-only field in the system with the output of a standard formula/calculation. Within Specify, only the fields predefined in our code and described in this article are available.