ROUNDDOWN Function (DAX) - Enterprise DNA | Knowledge Base

ROUNDDOWN

ROUNDDOWN Function (DAX)

Sam McKay February 19, 2020 No Comments

How does the ROUNDDOWN function (DAX) work?

The ROUNDDOWN function (DAX) rounds a number down, toward zero.

ROUNDDOWN Formula Syntax

ROUNDDOWN(
<number>, <num_digits>
)

How do you use the ROUNDDOWN function?

The ROUNDDOWN function will always round numbers down. The number of places to round to is controlled by the num_digits argument. Positive numbers round to the right of the decimal point, negative numbers round to the left, and zero rounds to the nearest 1.

Related Blog Posts

Related Support Forum Posts

Iterating a distinctcount between two tables
Grouping customers evenly by rank
Dax Calculation question

Considerations when using the ROUNDDOWN function

If num_digits is greater than 0 (zero), then the value in number is rounded down to the specified number of decimal places.

If num_digits is 0, then the value in number is rounded down to the nearest integer.

If num_digits is less than 0, then the value in number is rounded down to the left of the decimal point.

Related Video Tutorials

Formula examples using the ROUNDDOWN function

=ROUNDDOWN(3.14159,3)

=ROUNDDOWN(31415.92654, -2)

=ROUNDDOWN(76.9,0)

Related DAX Functions

ROUND

MROUND

ROUNDUP

INT

Related Course Modules

Ultimate-Beginners-Guide-To-PowerBI

“I truly appreciate your efforts in helping the ones who needed to get more professional help in using Power BI. Your videos are A+ and really helpful+inspiring for me. I wish you the best from Turkey.”

Erol Yücel

“I have taken couple of courses from Sam from Enterprise DNA. I really liked the course. Its well explained, organized and importantly all the datas and formulas & even dashboards are available for everyone.”

Mahesh T, London

“Enterprise DNA has greatly increase my ability to report within our company forever. I went from knowing nothing about Power BI to using it on a daily basis in 30 days simply by watching Sam’s videos & executing his technique.”

Geoff Ellis

“Sam has a very hands-on approach to his training, and is always willing to help! Been apart of several different DAX classes, & Sam’s training is by far the best I have come across.”

Matt Ballinger

“I am really thankful to Sam for helping me through the Power BI. I was a newbie and his hands-on approach and business-oriented approach is all we need. Great work Sam. Keep going!”

Sourabh

“Thanks to Enterprise DNA training! I have improved my Power BI tool skills and have a deeper understanding of data analytics. Sam does an excellent job teaching and problem-solving.”

Brian Marron