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Annuity Calculator

Annuity Calculator

Project the future value of an annuity with a starting balance, regular additions, contribution timing, interest, and yearly balance schedule.

Add at Each Period

About Annuity Calculator


Annuity Calculator projects how a balance can grow when you combine a starting amount with recurring annual and monthly additions. It is useful for retirement planning, education funds, or any long-term savings plan where contribution timing affects the result.

How To Use It


Set the initial balance, the recurring additions, and the growth assumptions, then review the yearly schedule.

  • Enter the starting principal and any annual or monthly additions you plan to make.
  • Choose whether those additions happen at the beginning or end of each period.
  • Set the annual interest rate and the number of years, then click Calculate.

Examples


  • Savings with regular additions
    Starting Principal:
    100000
    Annual Addition:
    1000
    Monthly Addition:
    500
    Annual Interest:
    3.5%
    Years:
    5
  • Begin-period investing
    Add at Each Period:
    Beginning
    Result: contributions are counted earlier in the growth cycle
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