Retirement Withdrawal Calculator
How much can you safely spend each month? Enter your savings, how many years the money needs to last and an expected return. The calculator finds the level monthly withdrawal that spends your savings down to zero at the end.
- Monthly withdrawal
- $3,975.41
- Yearly withdrawal
- $47,704.97
- Initial withdrawal rate
- 6.36%
- 4% rule (first year)
- $30,000.00
Worked example
Example: $750,000 over 30 years at 5%
- Monthly rate r = 1.05^(1/12) − 1 = 0.4074%
- n = 360 months
- W = 750,000 × r ÷ (1 − (1 + r)⁻³⁶⁰) ≈ $3,975
About $3,975/month ($47,700/year, a 6.4% initial rate).
Formula
W = B × r ÷ (1 − (1 + r)⁻ⁿ)
This is the loan-payment formula run in reverse: your savings “lend” you a monthly income. It assumes a steady return and no inflation increases.
Frequently asked questions
What is a safe withdrawal rate?
3.5%–4% of the starting balance, adjusted for inflation, is a common rule of thumb for a 30-year retirement.
When do required minimum distributions start?
Under current law, RMDs from most tax-deferred accounts begin at age 73 (75 for people born in 1960 or later).
Are withdrawals taxed?
Traditional 401(k)/403(b)/IRA withdrawals are taxed as income; qualified Roth withdrawals are tax-free.
Is this financial advice?
No. Results are estimates for planning and education. Rates, taxes and lender rules vary — confirm with your lender or a licensed financial professional.
Last reviewed October 17, 2026 · Calculations run in your browser; nothing you enter is sent to a server.