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Compound Interest Calculator

Compound growth reinvests interest into the balance used by the next period. The formula applies the nominal annual rate divided by compounding frequency for every period.

How it works

Compound growth reinvests interest into the balance used by the next period. The formula applies the nominal annual rate divided by compounding frequency for every period.

Choose the right inputs

Annual, quarterly and monthly settings correspond to one, four and twelve compounding periods per year. More frequent compounding changes the result at the same nominal rate.

Understand the output

Starting capital and interest earned appear separately from future value. No recurring savings contribution is implied by the starting amount field.

Use the result carefully

A constant rate is an assumption, not a promised return. Very large growth outside precise supported arithmetic is rejected rather than printed as a misleading money figure.

Compound Interest Calculator FAQs

Assumes a constant nominal annual rate and no deposits, tax or fees.
INR 10,000 at 10% compounded annually for two years grows to INR 12,100, including INR 2,100 interest.
Annual, quarterly and monthly settings correspond to one, four and twelve compounding periods per year. More frequent compounding changes the result at the same nominal rate. INR 10,000 at 10% compounded annually for two years grows to INR 12,100, including INR 2,100 interest.

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