Compound Interest Calculator
Compound Interest Calculator is free to use. Enter your figures below and the result updates as you type. Use it for planning; it is an estimate, not advice.
About the Compound Interest Calculator
A = P × (1 + r ÷ n)^(n × t), where P is principal, r the annual rate, n the compounding periods per year and t the years.
Choosing more frequent compounding (monthly or daily) raises the final amount slightly.
How to use the Compound Interest Calculator
- Enter each figure in the boxes above, using the same currency and time units.
- The result updates as you type. Press Calculate to refresh it at any time.
- Change one figure at a time to see how much it moves the result.
Frequently asked questions
What is the Compound Interest Calculator used for?
Choosing more frequent compounding (monthly or daily) raises the final amount slightly.
How accurate is the Compound Interest Calculator?
It applies standard formulas to the figures you enter. Real results depend on actual rates, fees, taxes and timing, so treat the output as an estimate and confirm with your bank or adviser.
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