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Compound Interest Calculator
See how your savings and investments can grow with the magic of compound interest!
Compound Interest Calculator
Update the purple table below to see how your money can work for you!
Currency (optional)
Interest Rate (%)
Initial deposit
Recurring payments
How often?
Years of Growth
United States Dollar
10%
100
100
Monthly
00
25There are no rows in this table
$119,111
$
119,111
Potential Balance
$89,009
$
89,009
Total Interest Earned
$30,000
$
30,000
Total Contributions
$100
$
100
Initial Deposit
What is compound interest?
Compound interest is like a snowball rolling down a hill—it starts small, but as it gathers more snow, it grows faster and faster. It’s the process of earning interest on both the money you save or invest and the interest that money has already earned. Over time, this creates a powerful "compounding" effect that helps your money grow more quickly.
Here’s how it works: Let’s say you invest £100 and earn 5% interest each year. At the end of the first year, you’ll have £105. In the second year, instead of earning interest just on your original £100, you’ll earn interest on the full £105. That small difference adds up significantly over the years.
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