---
title: "QQ - How do I round up a decimal number to 1 decimal place?"
slug: "qq-how-do-i-change-decimal-precision"
updated: 2022-12-12T13:07:51Z
published: 2022-12-12T13:07:51Z
canonical: "docs.datajet.app/qq-how-do-i-change-decimal-precision"
---

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

# QQ - How do I round up a decimal number to 1 decimal place?

To change the decimal precision of an existing double field (or to "Round-up" the number) use the Expression Builder:

![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1670850300392.png)