← All tools
Planning tool

Retirement Calculator

In brief

Test how savings, contributions, retirement spending, other income, inflation, and assumed returns interact. Results are deterministic illustrations—not forecasts—and use only the assumptions you enter.

Published
Last reviewed

Timeline

Savings

Retirement cash flow in today’s dollars

Return and inflation assumptions

The 10% default is an editable, rounded nominal U.S. large-cap equity reference—not a forecast. Your portfolio, fees, taxes, and investment period can produce very different results.

Your retirement estimate

Projected savings at retirement

$0

Estimated amount needed

$0

First-year retirement spending gap × 25.

Additional monthly saving needed

$0

Beyond the monthly contribution entered.

Estimated first-month portfolio withdrawal

$0

Projected savings versus target

0%

Portfolio lasts through

Assuming the entered spending gap rises with inflation and returns arrive smoothly.

First-year spending gap at retirement

$0

How the estimate works

  • • Contributions are added monthly at month-end and compound at the entered pre-retirement rate.
  • • Today’s spending and other income are increased by the entered inflation rate until retirement.
  • • The funding target equals first-year retirement expenses minus entered guaranteed income, multiplied by 25—the inverse of a 4% initial withdrawal rate.
  • • The 4% rule is a historical rule of thumb associated with a roughly 30-year retirement, not a guarantee. The planning-age longevity result remains a separate deterministic calculation.
  • • No taxes, fees, account rules, market volatility, contribution limits, benefit changes, or sequence-of-returns risk are modeled.

Use this as a scenario, not a prediction

Real returns do not arrive smoothly, inflation varies, spending changes, and taxes can materially affect withdrawals. Try several conservative and optimistic assumptions instead of relying on one result.