Retirement Savings Calculator
Project your retirement nest egg based on your current age, retirement age, existing savings, monthly contributions, and expected return. Includes inflation-adjusted value and estimated monthly income using the illustrative 4% withdrawal assumption.
4% withdrawal illustration: the annual amount is 4% of the projected balance; the monthly amount is one twelfth of that. It is in future dollars, before tax. This calculator does not model withdrawals, variable market returns or how long savings will last. It is not guaranteed or “safe” income.
Balance Growth to Retirement
Contributions vs Growth by Year
Frequently Asked Questions
Formula and a worked example
The projection compounds your starting savings and adds contributions at each month end. With monthly rate r, n months, starting savings P and contribution C, future value is P × (1+r)n + C × ((1+r)n−1)/r. At 0%, it is P + C × n.
Example: age 30 to 65 is 420 months. Starting with $15,000 and adding $500 a month at 0% gives $225,000. A 4% initial withdrawal illustration is $9,000 a year, or $750 a month before tax. Those amounts do not establish how long the money lasts. At 0% inflation, future and today's dollar values are equal.
What changes the result?
More monthly saving raises contributions directly; more years adds deposits and compounding time. The assumed return compounds across every year, so a small change can substantially alter a long projection. Compare several return assumptions, including 0%, rather than treating one as a forecast.
What does “today's dollars” mean?
The future balance is divided by (1 + annual inflation rate)years. This estimates purchasing power under constant inflation. The withdrawal card uses the future balance, not the inflation-adjusted balance.
Does this account for taxes and retirement spending?
No. Fees, taxes, employer matches, pensions, changing contributions and withdrawals are outside this model. It projects accumulation only and does not test whether savings meet your needs.