{"id":1645,"date":"2023-01-21T03:02:59","date_gmt":"2023-01-21T03:02:59","guid":{"rendered":"https:\/\/monocroft.com\/?p=1645"},"modified":"2023-03-16T04:39:38","modified_gmt":"2023-03-16T04:39:38","slug":"how-to-do-custom-rounding-in-dax","status":"publish","type":"post","link":"https:\/\/monocroft.com\/how-to-do-custom-rounding-in-dax\/","title":{"rendered":"How to Do Custom Rounding in DAX"},"content":{"rendered":"\n<p>In Power BI, DAX provides a ROUND function that can be used to round off numbers to a certain number of decimal places. However, if you want to do custom rounding, you will need to use a combination of other DAX functions.<\/p>\n\n\n\n<p>You can do custom rounding in DAX by using the <strong>FLOOR<\/strong> and <strong>CEILING<\/strong> functions. The <strong>CEILING function rounds a number up<\/strong> to the nearest integer or the nearest multiple of significance.<\/p>\n\n\n\n<p>While the <strong>FLOOR function rounds a number down<\/strong>, toward zero, or to the nearest multiple of significance.<\/p>\n\n\n\n<p>In this article, I will explain how to use both the floor and ceiling functions to do custom rounding in DAX.<\/p>\n\n\n\n<p>Let&#8217;s get started.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understand How Custom Rounding Works in DAX<\/h2>\n\n\n\n<p>When writing DAX formulas, rounding is decided by a user-defined precision parameter. This parameter specifies the number of significant digits that will be returned and is adjusted based on the original value in the data expression. <\/p>\n\n\n\n<p>Hence, understanding this will help you tailor your custom rounding to get the exact results you want. With this knowledge, let&#8217;s explore different functions to do custom rounding in Power BI.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. The FLOOR function<\/h2>\n\n\n\n<p>To use the <strong><code>FLOOR <\/code><\/strong>function, you can write a formula like this:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong><code>= FLOOR(number, significance)<\/code><\/strong><\/pre>\n\n\n\n<p>Where <strong>number<\/strong> is the decimal number you want to round down, and <strong>significance<\/strong> is the multiple to which you want to round down.<\/p>\n\n\n\n<p>For example, if you want to <strong>round the number 3.5 down<\/strong> to the nearest whole number, you would use the formula:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong><code>= FLOOR(3.5, 1)<\/code><\/strong><\/pre>\n\n\n\n<p>This would return the value &#8220;<strong>3<\/strong>&#8220;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. The CEILING function<\/h2>\n\n\n\n<p>To round up a number using the <code><strong>CEILING <\/strong><\/code>function, you can write a formula like this:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= CEILING(number, significance)<\/strong><\/code><\/pre>\n\n\n\n<p>Where <strong>number<\/strong> is the decimal number you want to round up, and <strong>significance<\/strong> is the multiple to which you want to round up.<\/p>\n\n\n\n<p>For example, to <strong>round the number 3.5 up<\/strong> to the nearest whole number, your formula would be:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= CEILING(3.5, 1)<\/strong><\/code><\/pre>\n\n\n\n<p>This would return the value <strong>&#8220;4&#8221;<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. The ROUND and ROUNDUP functions<\/h2>\n\n\n\n<p>Alternatively, DAX provides the <strong><code>ROUND <\/code><\/strong>and <code><strong>ROUNDUP<\/strong> <\/code>functions for rounding numbers into a specified number of decimal places. Here is how to use both:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The ROUND function<\/h3>\n\n\n\n<p>To use the <strong><code>ROUND <\/code><\/strong>function, you can use the formula:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= ROUND(number, decimal_places)<\/strong><\/code><\/pre>\n\n\n\n<p>Where <strong>number<\/strong> is the number you want to round, and <strong>decimal_places<\/strong> is the number of decimal places to which you want to round.<\/p>\n\n\n\n<p>For example, if you want to <strong>round the number 4.56789 to two decimal places<\/strong>, you would use the formula:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= ROUND(4.56789, 2)<\/strong><\/code><\/pre>\n\n\n\n<p>This would return the value <strong>&#8220;4.57&#8221;<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The ROUNDUP function<\/h3>\n\n\n\n<p>To use the <code><strong>ROUNDUP<\/strong> <\/code>function, you can write a formula like this:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= ROUNDUP(number, decimal_places)<\/strong><\/code><\/pre>\n\n\n\n<p>Where number is the number you want to round up, and <strong>decimal_places<\/strong> is the number of decimal places to which you want to round up.<\/p>\n\n\n\n<p>For example, to <strong>round the number 4.567 up to the nearest whole number<\/strong>, you would use the formula:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code><strong>= ROUNDUP(4.567, 0)<\/strong><\/code><\/pre>\n\n\n\n<p>This would return the value <strong>&#8220;5&#8221;<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Custom rounding to a multiple<\/h2>\n\n\n\n<p>You can also use custom rounding to round to a certain multiple. This can be done by dividing the number by the multiple and then multiplying it by the multiple again.<\/p>\n\n\n\n<p>For example, to round the number 12.8 to the nearest multiple of 5, you would use the formula:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong><code>= ROUND(12.8\/5,0)*5<\/code><\/strong><\/pre>\n\n\n\n<p>This would return the value <strong>&#8220;15&#8221;<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion: How to Do Custom Rounding in DAX<\/h2>\n\n\n\n<p>Custom rounding in DAX allows you to round a number to a specific decimal place or to a certain multiple, which can be useful in a variety of situations such as <strong>formatting for visual effects, simplifying calculations, improving data analysis, etc.<\/strong><\/p>\n\n\n\n<p>However, kindly note that custom rounding can lead to accuracy issues. Thus, it is important to understand the implications of rounding on your data analysis results.<\/p>\n\n\n\n<p>Thanks for reading.<\/p>\n\n\n\n<p>I hope you enjoyed reading this article.<\/p>\n\n\n\n<p>Happy analyzing!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Power BI, DAX provides a ROUND function that can be used to round off numbers to a certain number &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How to Do Custom Rounding in DAX\" class=\"read-more button\" href=\"https:\/\/monocroft.com\/how-to-do-custom-rounding-in-dax\/#more-1645\" aria-label=\"More on How to Do Custom Rounding in DAX\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":1646,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Do Custom Rounding in DAX - Monocroft<\/title>\n<meta name=\"description\" content=\"Want to learn how to do custom rounding in DAX? 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