Work out the hourly rate you need as a freelancer from your target income, expenses, taxes and billable hours.
Rate = (take-home ÷ (1 − tax rate) + expenses) ÷ billable hours. Freelancers rarely bill 40 hrs/week; 20–30 is realistic after admin and sales.
20–30 per week for most freelancers.
Include it in your tax rate (US SE tax is about 15.3%).