What an hour has to cost to pay you

Start from the money you need, then work back to a rate. Billable hours are the honest part: it is the hours you can actually charge for, not the hours you sit at a desk.

What you need in hand each month

Working hours per week

Share of them you can charge for, percent

Sellers run at 40 to 60. Nobody gets paid for the admin.

Paid weeks in the year

Take out holidays, sick days and the empty fortnights.

Months you are pricing for

Platform and payment fees, percent

Type your own. If you invoice by bank transfer, use 0.

Hours you can charge for, per year	-
What has to come in, per year, before fees	-
The rate that gets you there	-

Every line above comes out of the boxes you typed. Nothing is stored, nothing is sent, and there is no account behind this page.

It answers 'what rate hits the number you typed', not 'what will anyone pay'. Those are different questions and only the market answers the second one.
If the rate comes out absurd, the honest fix is usually more billable share or fewer dead weeks, not a bigger number.
Nothing here is a forecast of work. Empty weeks are the trade's normal weather.