Living off your investment returns can help remove one of the biggest fears about life after leaving your job: Will my money outlast me?

Once you decide how much you need per year in retirement, you can figure out how much money you need to invest.

Check out this video for a breakdown of the how much you need to save to earn $35,000, $40,000 or $50,000 every year in retirement.

More from Invest in You:
How much you can expect to get from Social Security if you make $40,000 a year
The real 'Catch Me If You Can' con artist says this classic scam is making a comeback

Disclosure: NBCUniversal and Comcast Ventures are investors in Acorns.

Also on CNBC

• Did you work from home this year? Who can claim the home office tax deduction
• Leaving a job? What to do so you don't misplace retirement savings
• Holiday tipping guide 2021: Who to tip and how much to give

Subscribe to the CNBC YouTube Channel

Morning Squawk Newsletter