How Long Will My Savings Last Calculator

Estimate how long your savings will last based on your current savings, monthly expenses, and expected annual return rate.

isCalculator Editorial Team Published by:
Reviewed by: Review Board
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How to use this tool?

This calculator estimates how many years and months your savings will last given regular monthly withdrawals and an assumed annual return rate.

  1. Enter Current Savings ($): The total amount you have saved (e.g., 100000).
  2. Enter Monthly Expenses ($): The amount you plan to withdraw each month (e.g., 3000). Must be greater than 0.
  3. Enter Annual Return Rate (%): The expected yearly interest rate on your savings (e.g., 5 for 5%). Enter 0 if no growth.
  4. Click "Calculate": The result shows how long your savings will last in years and months.
  5. Note: If your monthly expenses are less than the interest earned, the result will say your savings never run out. The calculation assumes constant monthly withdrawals and monthly compounding of the annual return rate.

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Frequently Asked Questions

The calculator uses the future value of an annuity formula to solve for the number of months until savings are depleted, assuming constant monthly withdrawals and a constant annual return rate compounded monthly.

If the interest earned each month exceeds your expenses, your savings will never run out; the calculator will indicate that your savings last indefinitely.

You need to enter your current savings amount, monthly expenses, and the expected annual return rate on your savings (as a percentage).

Reviewed by Experts

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Carlos Bicho

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Danilson Melicio

Danilson Melicio

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Eurico José Kiala

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Francisco Saramango

Francisco Saramango

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Financial Management and Accounting, Financial management and accounting

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Juliana Mayorca

Juliana Mayorca

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