Understanding swp calculator
A systematic withdrawal plan pays money out of a portfolio while the remaining assets continue to change in value. The projection caps the last payment when the balance becomes insufficient. Test a higher withdrawal and a lower return to see how quickly funds may run out.
Formula and calculation method
Apply monthly effective growth and deduct the scheduled withdrawal. If funds run out, the final withdrawal is capped at the available balance.
All rates are illustrative, editable assumptions, not live quotations or guaranteed returns. Fees and taxes are excluded unless entered. Compare scenarios using the same contribution timing and return convention. Constant returns hide sequence-of-returns risk. A sustainable withdrawal is not guaranteed.
How to use swp calculator
- Set Initial portfolio. The example below uses 1000000.
- Set Monthly withdrawal. The example below uses 5000.
- Set Assumed annual effective return (%). The example below uses 8.
- Set Duration (years). The example below uses 10.
- Set Withdrawal timing by choosing the option that matches your calculation.
- Select Calculate to update the result. Reset restores the illustrated inputs. Copy, print or download your own result if you need a record.
Worked example
Example inputs
- Initial portfolio
- 1000000
- Monthly withdrawal
- 5000
- Assumed annual effective return (%)
- 8
- Duration (years)
- 10
- Withdrawal timing
- End of month
- Remaining portfolio
- 1,258,303.6313027
- Total withdrawn
- 600000
- Depletion month
- Not depleted during entered duration
Factors affecting your result
All rates are illustrative, editable assumptions, not live quotations or guaranteed returns. Fees and taxes are excluded unless entered. Compare scenarios using the same contribution timing and return convention. Constant returns hide sequence-of-returns risk. A sustainable withdrawal is not guaranteed.
Changing initial portfolio changes the scenario being evaluated. Adjust one input at a time when comparing results, keep a copy of the assumptions, and compare values using the same unit and period. A precise arithmetic result does not make an uncertain assumption precise.
Frequently asked questions
How does the swp calculator work?
Apply monthly effective growth and deduct the scheduled withdrawal. If funds run out, the final withdrawal is capped at the available balance.
What inputs does SWP Calculator need?
Enter initial portfolio, monthly withdrawal, assumed annual effective return (%), duration (years), withdrawal timing. Read the unit labels; percentages are entered as ordinary percentages, not decimal fractions.
How should I interpret the swp calculator result?
All rates are illustrative, editable assumptions, not live quotations or guaranteed returns. Fees and taxes are excluded unless entered. Compare scenarios using the same contribution timing and return convention. Constant returns hide sequence-of-returns risk. A sustainable withdrawal is not guaranteed.
Are my swp calculator inputs uploaded?
No. The calculation runs in this browser. Favorites, recent tool names, theme and formatting preferences may be saved locally, but calculation inputs are not sent to a calculation server or stored by this website. Shared links do not include entered values.
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