CalcArcade.

Retirement Savings Calculator

Enter your age, savings and monthly saving, the return you expect and the monthly income you want in retirement. The calculator projects your savings, turns them into monthly income, adds Social Security and shows any gap.

Your numbers

An assumption you can change, not a forecast.

An assumption you can change, not a forecast.

The share of your savings you take out each year. Many planners start near 4%.

Result

Estimate for information only, not professional advice. Last reviewed .

Tax year 2026. Tax figures last updated October 29, 2026. Sources.

How we calculate it

Savings at retirement = current savings × growth + monthly savings × the growth factor of the deposits, using the monthly growth rate that matches your yearly return. Dividing by (1 + inflation) for each year shows the balance in today’s dollars.

Monthly income from savings = today’s-dollar balance × withdrawal rate ÷ 12. Adding Social Security gives your total monthly income, which is compared with the income you want. If you fall short, the extra monthly saving that closes the gap is shown.

Assumptions and limits

  • Return and inflation are assumptions, and real markets vary. The withdrawal rate is a planning rule, not a guarantee that savings last.
  • Taxes on withdrawals, fees, health costs and the order of good and bad years are not included.
  • Use the Social Security estimate calculator or your statement at ssa.gov for the Social Security figure.
  • All income figures are in today’s dollars so they are comparable with what you spend now.

Frequently asked questions

How much do I need to retire?

A common rule of thumb is about 25 times your yearly spending beyond Social Security, which matches a 4% withdrawal rate. Your needs may be higher or lower.

What is a safe withdrawal rate?

Planners often start with about 4% of savings in the first year and adjust for inflation. A longer retirement or a weak market early on can call for a lower rate.

Does the calculator include inflation?

Yes. Balances and income are shown in today’s dollars using the inflation rate you enter, so you can compare them with your current budget.

What if I am short of my goal?

The calculator shows the extra monthly saving that would close the gap. Other levers are retiring later, spending less, or planning for part-time income.

Related calculators

Worked example (a fixed example using the starting numbers, it does not change as you type)

Inputs: Your age now = 35; Age you plan to retire = 67; Current retirement savings ($) = 50000; Saved each month ($) = 800; Expected yearly return (%) = 6; Expected yearly inflation (%) = 2.5; Monthly income you want, in today’s dollars ($) = 5000; Expected Social Security, in today’s dollars ($ a month) = 2000; Yearly withdrawal rate (%) = 4.

  • Savings at retirement $1,218,953.67
  • In today’s dollars $553,125.28
  • Monthly income from savings (today’s dollars) $1,843.75
  • Plus Social Security (today’s dollars) $2,000.00
  • Total monthly income $3,843.75
  • Short of your goal by $1,156.25
  • Extra to save each month to reach the goal $682.31

Embed this calculator

Add this calculator to your own page. Paste the code where you want it. The small link keeps credit to the source.

More financial calculators

Last reviewed: . Formulas and assumptions are described on our methodology page. For information only; not professional advice.