Safe Withdrawal Rate Custom
Calculator
Results
- Annual withdrawal
- 35,000
- Monthly withdrawal
- 2,916.666666
- Difference against the 4% rule
- -5,000
Retirement planning results
| Annual withdrawal | 35,000 |
| Monthly withdrawal | 2,916.666666 |
| Difference against the 4% rule | -5,000 |
formula-map diagram
- Annual withdrawal
- 35,000
- Monthly withdrawal
- 2,916.666666
- Difference against the 4% rule
- -5,000
Retirement planning relationship
Formula
W = P × r= 35000
Note
This is not financial advice. It is a simplified model: it applies the displayed standard formula to the figures you entered, assumes a single constant rate for every year, and ignores taxes, fees, sequence-of-returns risk, health costs, longevity risk and any country's specific pension, benefit or minimum-distribution rules. Real returns can be negative and real retirements rarely follow a smooth curve. Check the assumptions and consult a licensed adviser before acting on any figure.
More in Retirement planning
See all →Frequently asked questions
How is this different from the standard 4% rule calculator?+
It uses the same underlying math (withdrawal amount as a percentage of portfolio value), but lets you plug in any withdrawal rate you choose instead of the default 4%, so you can test how the results change under more conservative or more aggressive assumptions.
Why would someone use a rate lower than 4%?+
A lower rate (such as 3-3.5%) is often chosen for longer-than-typical retirement horizons (early retirees planning for 40-50+ years), for periods of higher market valuations where future returns may be muted, or simply for extra safety margin against sequence-of-returns risk.
Why would someone use a rate higher than 4%?+
A higher rate might suit someone with a shorter expected retirement horizon (a later retirement start), someone with other guaranteed income sources to fall back on, or someone comfortable reducing spending if the portfolio underperforms — all of which reduce the consequences of a higher rate not holding up.
Does changing the rate change how the withdrawal grows over time?+
Not necessarily — you can typically still choose whether the dollar withdrawal increases with inflation each year (as in the classic rule) or is recalculated as a percentage of the current balance annually; the custom rate only changes the starting percentage, not this separate methodology choice.
Is there a 'right' custom rate to use?+
No single rate is universally correct — the appropriate rate depends on your specific time horizon, flexibility to cut spending, other income sources, and risk tolerance, which is exactly why a customizable calculator is more useful than relying on one fixed industry rule of thumb.