Start by looking at your pay stub.
Look at your pay stub for W2. As a 1099 contractor, you'll have to pay double what your employer deducts for social security and medicare. It's called self-employment tax.
Look at what your employer withholds for taxes. As an independent, you will have to pay quarterly estimated tax in about the same amounts (or maybe a little more).
Other company-paid benefits? (Health, life, vacation)? All that becomes your personal responsibility.
You won't see how much what your company pays into your state's unemployment compensation fund. But, as an independent contractor you won't be able to draw unemployment compensation if you don't have work.
Get a copy of Schedule C of the federal income tax forms. It has a box for each kind of cost-of-doing-business you might incur as an independent. Those costs are tax-deductible. But you still have to pay the costs of doing business. Schedule C is a nice checklist to remind you about the stuff you'll have to do.
If you're looking for comparable take-home pay to your present W-2 gig, you probably need to charge at least 20% - 25% more per hour than you currently make. But before you decide your rate, price out health insurance; if you have to pay for it yourself it could cost a lot.
Make an appointment with https://score.org/ . They offer free advice to people considering going into business for themselves, and they can help you sort out how to do this well.
Pro tip Be careful taking the home-office tax deduction. Lots of people try to abuse it, so the IRS likes to audit returns with it on there.