{% assign words_per_minute = site.words_per_minute | default: 200 %}

{% if post.read_time %}
  {% assign words = post.content | strip_html | number_of_words %}
{% elsif page.read_time %}
  {% assign words = page.content | strip_html | number_of_words %}
{% endif %}

{% if words < words_per_minute %}
  ~1 {{ site.data.theme.t.min_read | default: 'min read' }}
{% else %}
  {{ words | divided_by:words_per_minute }} {{ site.data.theme.t.min_read | default: 'min read' }}
{% endif %}