# XY Chart number format

**URL:** <https://forum.inductiveautomation.com/t/xy-chart-number-format/106709>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [May 27, 2025, 9:12am UTC](https://forum.inductiveautomation.com/t/xy-chart-number-format/106709 "2025-05-27T09:12:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Alejandro\_Alaco](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/alejandro_alaco/32/59849_2.png) [@Alejandro\_Alaco](https://forum.inductiveautomation.com/u/Alejandro_Alaco)\
**Post date:** [May 27, 2025, 9:12am UTC](https://forum.inductiveautomation.com/t/xy-chart-number-format/106709/1 "2025-05-27T09:12:47Z")

</div>

Hello!

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/7/6/7665b8656f8a8347034f7c1a4ac75f5ede3ff3f0.png)

I'm using XY Charts in Ignition Perspective, and I noticed the chart requires numbers in US format (e.g., `1234.56`) to work correctly.

Is it possible to **display the numbers in European format** (e.g., `1.234,56`) in the chart tooltips and axis labels, while keeping the internal data format unchanged?

Changing locale on session props doesnt work for this.

When european and US format will unify?, would be nice also to unify measurement systems.

Cheers!

---

<div class="post-metadata">

**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\
**Post date:** [May 27, 2025, 9:14am UTC](https://forum.inductiveautomation.com/t/xy-chart-number-format/106709/2 "2025-05-27T09:14:48Z")

</div>

I don't know, but check out the AM Charts documentation:  
[https://www.amcharts.com/docs/v4/concepts/formatters/formatting-numbers/](https://www.amcharts.com/docs/v4/concepts/formatters/formatting-numbers/)

---

<div class="post-metadata">

**Author:** ![Marek\_Uhlir](https://avatars.discourse-cdn.com/v4/letter/m/3d9bf3/32.png) [@Marek\_Uhlir](https://forum.inductiveautomation.com/u/Marek_Uhlir)\
**Post date:** [October 17, 2025, 6:52am UTC](https://forum.inductiveautomation.com/t/xy-chart-number-format/106709/3 "2025-10-17T06:52:37Z")

</div>

Hello!

It seems like it should be possible based on the AM Charts capabilities, but I haven't found a straightforward way to apply those localization settings within Ignition's implementation. Any insights would be appreciated!

---

<div class="post-metadata">

**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\
**Post date:** [October 17, 2025, 6:59am UTC](https://forum.inductiveautomation.com/t/xy-chart-number-format/106709/4 "2025-10-17T06:59:20Z")

</div>

> [@Alejandro\_Alaco](#):
>
> When european and US format will unify?

ISO and multiple other international standards define the use of either a comma or a dot as the decimal separator and only a space `" "` between thousands. The standards exist, but even you don't use them.