Compound Interest Calculator
See how your money grows over time with the power of compound interest.
Investment Details
EUR
The amount you're starting with
EUR
How much you'll add each month
%
years
Growth Over Time
Yr 1
€16,919
Yr 2
€24,339
Yr 3
€32,294
Yr 4
€40,825
Yr 5
€49,973
Yr 6
€59,782
Yr 7
€70,299
Yr 8
€81,578
Yr 9
€93,671
Yr 10
€106,639
Yr 11
€120,544
Yr 12
€135,455
Yr 13
€151,443
Yr 14
€168,587
Yr 15
€186,971
Yr 16
€206,683
Yr 17
€227,820
Yr 18
€250,486
Yr 19
€274,790
Yr 20
€300,851
What is Compound Interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. It's often called "interest on interest" and is what makes long-term investing so powerful.
The Rule of 72
A quick way to estimate how long it takes to double your money: divide 72 by your annual return rate. At 8% return, your money doubles in ~9 years. At 12%, it doubles in ~6 years.
Start Early
Time is your greatest asset. Starting 10 years earlier can result in significantly more wealth, even with smaller contributions. The earlier you start, the more time compound interest has to work.