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Butler: rounding float values

When using simple arithmetic equations with Trello butler, is it possible to round a resulting float value into an integer or at least a float with fewer decimals?


Custom fields Effort and Impact with values 3 and 10 respectively.

Butler equation:

set custom field "Priority" to "{{%Impact}} / {{%Effort}}"

This sets Priority to 3.3333333333333335. Is it possible to have the result somehow formatted to 3 or 3.33?

1 answer

1 accepted

1 vote
Answer accepted
Lara Atlassian Team Feb 09, 2021

Hi Kartturi,

Thanks for reaching out!

At the moment, there isn't a way to round float values using Custom Field arithmetic.

If it helps at all, when you view the card on the board, it'll show the Priority field as 3.333:

Image 2021-02-10 at 12.59.54 pm.png

That said, I understand how this could be helpful, so I've flagged this as a feature request with the product team – let me know if there's any additional info you'd like for me to send their way!

If you're curious about how our team decides on what requests we work on, this article gives some insight into that process: We've also published a blog post with more detailed and visual information here:

If you'd like to see our latest features and releases you can take a look at our dev board at Our mobile boards are available at and

All the best,

The Trello Team

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