Compound InterestWhy the same monthly amount is worth vastly more when it starts earlier.MoneyInterest earns interest. Growth is exponential intime, so years matter more than amounts.A = P (1 + r/n)^(nt)£100/month at 7% for 10 years≈ £17,300You paid in £12,000.The same for 20 years≈ £52,000Double the time, triple the result.The same for 30 years≈ £122,000Triple the time, seven times the result.THE COMMON MISTAKE✗ Waiting until you can afford to save more✓ Starting small now and increasing laterTen years lost at the beginning cannot be bought back at the end. The earlymoney compounds for the longest.Illustrative figures at a constant 7%. Real returns vary and can benegative. Education, not advice.Compound Interestlearnposters.com
Compound Interest — printable money wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Compound Interest poster

The rule, 3 worked examples, and the mistake everyone makes.

Illustrative figures at a constant 7%. Real returns vary and can be negative. Education, not advice.

Questions about the Compound Interest poster

What’s on the Compound Interest poster?
The rule, 3 worked examples, and the mistake everyone makes. Interest earns interest. Growth is exponential in time, so years matter more than amo…; A = P (1 + r/n)^(nt); £100/month at 7% for 10 years = ≈ £17,300; The same for 20 years = ≈ £52,000; The same for 30 years = ≈ £122,000; Common mistake: Waiting until you can afford to save more → Starting small now and in…. Illustrative figures at a constant 7%. Real returns vary and can be negative. Education, not advice.
Who is the Compound Interest poster for?
Compound Interest belongs to the Money section rather than to a school year, because money is not something one grade owns. Anyone learning growth can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Compound Interest poster?
The variable that matters most is not the rate. It is the number of years. A wall chart earns its place by being glanceable from where the work is happening, so Compound Interest belongs on the wall where that money work actually happens, within glancing distance, rather than filed away.
What other posters go with Compound Interest?
Turning Savings into Income, APR & AER and Compounding Frequency sit alongside Compound Interest in the Money section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Turning Savings into IncomeAPR & AERCompounding Frequency
Is the Compound Interest poster free to download and print?
Yes. Compound Interest downloads as a free PDF with no account, no email and no watermark, like everything else in the Money section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Compound Interest poster print at?
Compound Interest is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Compound Interest loses nothing.Printing guide

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