If you start early, investing $1,000 per month throughout your career could maybe make you a millionaire. 

CNBC crunched the numbers, and we can tell you how much investing an extra $1,000 per month now will equal when you are ready to call it quits. 

Just a few things to remember: These numbers assume you put the money in a retirement account, you get a 4% return on your investments and you retire at age 67.

Check out this video for a full breakdown of how big your savings will grow over time, and to see what age you would need to start investing to get to $1 million.

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Disclosure: NBCUniversal and Comcast Ventures are investors in Acorns.

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