One coffee a day will make you rich.

Not overnight. Over 20 years. Keep your life. Redirect one small daily habit. Then let consistency and time show you what is possible.

$3

The price of a small coffee. The potential of a very long runway.

No second job. No dramatic lifestyle reset. Just test one daily trade-off and see the projection for yourself.

× 20 years

Calculate your own wonder—our compound-interest calculator will gladly do the math.

Your plan

Change any number
$
$
20 yr
%

Estimated value after 20 years

$0

A projection, not a promise.

Your total deposits $0
Estimated growth $0

How the balance could grow

This calculator is for educational purposes only and is not investment advice. The author is not a licensed financial advisor. All projections are hypothetical and do not guarantee future results.

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https://maxbuffett.com

About the author

Max Buffett came to America with $200 in his pocket — today he runs an investment portfolio of about $100,000. Read the story: https://maxxbuffett.wordpress.com/2026/09/24/from-200-in-my-pocket-to-a-100000-portfolio-my-story/

Credentials: verified finance certificates — IMF, World Bank, NYIF (x2), Microsoft AI, HarvardX on edX.

Books: The Patient Investor (Kindle): https://www.amazon.com/dp/B0HKG4898Y — Kettlebell Strength (Kindle): https://www.amazon.com/dp/B0HKF6DM62

Stores: Shopify: https://u10zu6-gv.myshopify.com — Etsy: https://plannovastudioco.etsy.com

The calculator shows the math. Patience makes it real.

The Patient Investor is based on a true story — the author’s own journey from $200 in his pocket to a real investment portfolio. This calculator is free and asks for no email. If it helped, the free weekly letter is one click away.

Where the “magic” comes from

You add a little, again and again.

DCA means investing the same amount on a regular schedule instead of waiting for a “perfect” day.

Your money has time to make money.

Returns can begin earning returns of their own. That is compounding.

The last years can do the most work.

Try 10, 15, then 20 years above. The habit stays the same, but the curve changes.

For education only. The annual return is converted to an equivalent monthly rate, with deposits spread evenly through the year. This projection does not include taxes, fees, inflation, market volatility, or losses. Real investment returns vary and can be negative.