Tool
Hourly rate calculator a floor, not a brand.
Add the income you want, the costs of working, the weeks you will take off, and the hours you can actually bill. The result is the minimum a sold hour must cover.
What the formula leaves out
It does not know your tax rate beyond the expenses you typed, and it does not know that some weeks will not sell out. Treat the number as a floor. Coaches, personal trainers and creators usually add a margin, then test it on a real booking page.
A package of ten sessions can be priced from the same floor without discounting so far that the unpaid admin disappears. Payments is where a package becomes something a client can buy.
Put the price where someone can pay it
A rate in a spreadsheet does not get you booked. A meeting type with that price, on a page that only offers hours you are free, does. Start on the Free plan and change the number after a few real bookings, not before.
When the number or the time is decided, put it on a BookMyTime page.