How Long Will My Money Last Calculator
Estimate how long your savings will last based on your current balance, monthly withdrawals, and expected annual return.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use This Calculator
Follow these steps to estimate how many years and months your savings will last given regular withdrawals and potential investment returns.
- Enter Current Balance ($) – The total amount of money you have saved (e.g., 100000 for $100,000).
- Enter Monthly Withdrawal ($) – How much you plan to take out each month (e.g., 2000 for $2,000).
- Enter Annual Return (%) – The expected yearly growth rate of your savings (e.g., 5 for 5%). Leave as 0 if no growth.
- Click "Calculate" – The result shows the estimated time (years and months) until your money runs out.
Important notes:
- All values must be non-negative numbers. Withdrawal must be greater than $0.
- If the withdrawal is less than or equal to the earnings from returns, the money will never run out (you'll see a warning).
- If the withdrawal exceeds earnings, the calculator assumes your savings will deplete over time.
- The formula uses monthly compounding for returns.
Previous Results
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Frequently Asked Questions
It estimates the number of months (or years and months) your savings will last if you withdraw a fixed amount each month and earn a fixed annual return on the remaining balance.
We use the formula for the number of periods until depletion, accounting for compound interest. If the annual return is 0%, it's simply balance divided by monthly withdrawal.
If the monthly withdrawal is less than or equal to the monthly earnings (balance times monthly return), the money will last indefinitely. The calculator will show an error message in that case.
