---
title: "Combine or concatenate the values of lists together"
slug: "combine-concatenate-the-values-of-lists-together"
updated: 2026-09-28T06:23:30Z
published: 2026-09-28T06:23:30Z
canonical: "help.quickbase.com/combine-concatenate-the-values-of-lists-together"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.quickbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Combine or concatenate the values of lists together

## Overview

In the Form Builder, you're able to concatenate (add) the values of two lists. This can be helpful for calculating the total price, quantity, hours, mileage, or any other value of the selected items of two lists.

## How to add the values of two lists

If you would like to combine the selected values from two Lists fields, you can use the following script as a template. The below script will need to be placed within the formula of a **Calculation** field: ****Note:*** *You will need to replace the items in red with your field keys.*

```plaintext
var allList = $listpicker_1$ + ',' + $listpicker_2$ + ',' + $listpicker_3$ + ',' + $listpicker_4$ + ',' + $listpicker_5$;
var arr = allList.split(',');
arr = arr.filter(cleanArray);
var end = '';
for (i = 0; i < arr.length; i++) {
end += arr[i] + '\r\n';
}
return end;
function cleanArray(item) {
return item != '';
}
```