obsidian-calc VS obsidian-calendar-plugin

There's a plugin called Meld Calc which may satisfy your needs. I don't know if it is automatic like in OneNote, but you could set a hotkey, so it resolves your calculation and writes the result behind the equals sign. Hope this helps, and I apologize for my English.

I really like the calendar plugin - it makes it easy to write daily notes, https://github.com/liamcain/obsidian-calendar-plugin.

Daily Journaling using Periodic Notes and Calendar: These enable me to maintain my daily journaling habit that I had in Evernote and add a visual view using the Canvas plug-in and powerful templates for habit tracking.

Like this? https://github.com/liamcain/obsidian-calendar-plugin

Ever since I discovered periodic notes, I wanted to make yearly, quarterly, and monthly plans. But the calendar plugin only provided quick access to daily and weekly notes.

Hello. It's kinda not efficient to manually type in the deadlines of my tasks in my kanban-board to the Calendar plugin by liamcain. Some of my deadlines were postponed so I had to change the deadline dates in my kanban-board thus I have to manually type in the new dates in my calendar.

To facilitate the creation of journal/daily pages, I suggest editing the “Daily Notes” settings. For example, use the following date format: YYYY/MM-MMMM/YYYY-MM-DD, and put all the notes in a single folder (like JOURNAL). You may also want to apply a specific template. It is also worth creating a separate note like “tags” where you will specify all the different tags to use for your daily notes (ideally start all the tags with -, like #-😊 so that once you type #- you will get a dropdown with all the tags). Finally, you can quickly find different dates with the Calendar plugin.

I'm referring to this plugin with the title "Calendar": https://github.com/liamcain/obsidian-calendar-plugin