Skip to main content
Downshift

Retirement Income Calculator

See how much monthly income your savings could support in retirement, and how it compares with what you plan to spend.

Illustrative monthly income$5,750

Understanding this calculator

Most retirement questions come down to one comparison: the income your savings and benefits can reliably produce, versus the spending that makes your life work. This calculator keeps that comparison front and center. Everything is shown in today's dollars, so you can judge the numbers against what things cost right now.

Two levers matter more than people expect. The first is time — each extra working year adds contributions, adds growth, and shortens the stretch your savings must cover. The second is guaranteed income like Social Security or a pension, because every guaranteed dollar is a dollar your portfolio never has to produce.

Use the scenario tabs to see conservative, expected, and optimistic return assumptions side by side — each is an illustration, not a prediction. If a plan only works in the optimistic case, that's worth knowing while there's still time to adjust.

Assumptions and methodology

  • All results are shown in today's dollars. Savings grow at a real (inflation-adjusted) return: your entered return minus inflation, compounded monthly.
  • Contributions are treated as level in today's dollars until your retirement age.
  • The illustrative monthly withdrawal spreads the projected balance evenly (a level-annuity illustration) from retirement to your plan-to age using the in-retirement return — before taxes and fees.
  • The withdrawal-rate view applies a fixed initial withdrawal rate (3.5%, 4%, or 4.5%) to the projected balance.
  • Taxes, investment fees, market volatility, and sequence-of-returns risk are not modeled — real results will differ from any steady-return illustration.

Last reviewed August 30, 2026. Year-specific figures show their tax or data year in the tool; data is reviewed when the IRS, SSA, and CMS publish annual updates.

Common questions

Why are results in today's dollars?

Inflation-adjusted numbers are easier to sanity-check: you can compare projected income directly with what your life costs today, without guessing what a dollar will buy decades from now.

What return assumptions should I use?

There's no single right answer. Long-run diversified portfolios have historically earned more than inflation, but the future isn't guaranteed. Try the conservative tab first — a plan that works there is a sturdier plan.

Does this include Social Security?

Yes — enter your expected benefit under guaranteed monthly income. The Social Security Timing calculator can help you estimate how claiming age changes it.