# Compound interest calculator

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Initial Investment: | $ | |

Monthly Addition: | $ | |

Years to grow: | ||

Interest Rate: | % | |

Compounding | monthly | |

Make additions at | of each compounding period | |

Results | ||

Future Value (total): | $ | |

Value from interest: | $ |

What is compound interest

Compound interest is the addition of interest to the principal sum of a loan or deposit,

or in other words, **interest on interest**.

It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is then earned on the principal sum plus previously accumulated interest.