Compound Interest Calculator
Principal, rate, time → interest and maturity amount.
A = P(1 + r/n)^(nt). Interest compounds on interest. FD and most investments use compound interest.
How to use
- Enter principal, rate, and tenure.
- Get compound amount and total interest.
Formula
A = P(1 + r)^n. A=amount, P=principal, r=rate per period, n=number of periods. CI = A − P.
FAQs
What is compound interest?
Interest on principal + previous interest. Grows faster than simple. A = P(1+r)^n.
Compound vs simple interest?
Compound: interest earns interest. Over time, compound gives much higher returns (investments) or costs (loans).
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