Is there a way to format the Asset Size variable to Mb, Kb, etc.?

Question

I'm trying to display the file size of a file uploaded in Assets. I can get it to display the number of bytes in the file. https://craftcms.com/docs/templating/craft.assets#size

Is there a way to format that number to Mb's?

Answer 1

This should do it:

{% set bytes = asset.size %}
{% set kiloBytes = (bytes / 1024)|round(2) %}
{% set megaBytes = (kiloBytes / 1024)|round(2) %}

bytes = {{ bytes }}
kiloBytes = {{ kiloBytes }}
megaBytes = {{ megaBytes }}

You can look at Twig's number_format filter if you want to get fancy with how to display the numbers.

Answer 2

You now can use the filesize filter: https://docs.craftcms.com/v3/dev/filters.html#filesize. This will make the file size readable, and the unit will be selected automatically.

Answer 3

As mentioned before, the filesize filter is your friend: https://craftcms.com/docs/4.x/dev/filters.html#filesize

Internally, this uses a yii Formatter. You can supply additional arguments to the filter. Here is a link to the function Craft is calling internally: https://www.yiiframework.com/doc/api/2.0/yii-i18n-formatter#asShortSize()-detail

Be aware that Craft's default base for calculating file sizes is 1000, not 1024. This lead to some unwanted results while I was working with it. I ended up overriding the global setting like this:

Craft::$app->formatter->sizeFormatBase = 1024;