How Long Savings Last with Withdrawals
Estimate how long balance go last if monthly withdrawal fixed.
Your numbers
How long withdrawals fit continue
Withdrawals happen for month end. Rates constant; taxes, fees and market sequence risk no dey included. Fractional months interpolate the model.
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You fit keep up to three snapshots for this tab. Loading one go replace the present inputs.
Formula
n=−ln(1−Br/W)/ln(1+r); n=B/W at r=0
Estimate how long balance go last if monthly withdrawal fixed.
Example wey show the calculation
- Balance for the start
- 12000
- Amount wey you withdraw every month
- 1000
- Nominal return for one year (%)
- 0
- How long withdrawals fit continue
- 12 months
Where e fit work and limits
Withdrawals happen for month end. Rates constant; taxes, fees and market sequence risk no dey included. Fractional months interpolate the model.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: 543a931cd4b9 · Example don get check: