How Much Do I Need to Retire? A Practical Way to Estimate It
How to estimate a realistic retirement savings target using your current age, contributions, employer match, and expected return, instead of a generic rule of thumb.
"How much do I need to retire?" doesn't have one universal answer, but you can get a genuinely useful estimate by projecting your actual contributions and employer match forward at a realistic return, rather than relying on a one-size-fits-all multiple of your salary.
Two common starting benchmarks
- 10-12× your final salary saved by retirement age is a widely cited rule of thumb, assuming a roughly 30-year retirement funded partly by savings and partly by Social Security.
- 25× your annual planned withdrawal (the "4% rule") works backward from how much annual income your savings need to safely generate — useful if you already know your target retirement spending.
Both are starting points, not personalized answers — your actual number depends on your expected retirement expenses, other income sources, and how many years the balance needs to last.
A more accurate way: project forward from today
- Start with your current age, balance, and salary.
- Add your contribution rate and employer match structure.
- Apply a realistic expected annual return (commonly 6-8% nominal for a diversified portfolio).
- Compound monthly out to your target retirement age.
This is exactly what the Retirement / 401(k) / Savings Goal Calculator does — enter a target goal amount and it tells you immediately whether your current trajectory reaches it, and if not, the total monthly contribution that would.