Retirement Savings Calculator (USA)

How to use

• Enter your current age and planned retirement age.
• Add your current retirement balance and your current annual income.
• Enter your monthly contributions and any employer match or extra monthly retirement contribution.
• Set your expected annual return, inflation rate, withdrawal rate, and any expected annual Social Security or pension income.
• Choose your desired retirement income replacement rate and any extra annual spending target.
• Click Calculate to see the projected retirement portfolio, estimated annual retirement income, and the remaining gap or surplus.

If you want a simpler compound-growth view, use the Investment Growth Calculator (Canada). If you want to see how your budget may support larger monthly savings, the 50/30/20 Budget Calculator (USA) can help estimate how much extra cash flow may be available for retirement contributions.

How the calculation works

Retirement savings planning has two main parts: building the portfolio before retirement and estimating how much annual income that portfolio may support after retirement begins. This calculator handles both parts in one model. It starts with your current retirement balance, adds monthly contributions over the years until retirement, and grows the account using the expected annual return you choose.

The future-value side of the calculation uses monthly compounding. In simplified form, the model combines:

Future portfolio = Growth of current balance + Growth of ongoing monthly contributions

Once the portfolio value at retirement is estimated, the calculator converts it into a rough annual retirement-income estimate using the withdrawal rate you entered:

Estimated annual portfolio income = Projected portfolio × Withdrawal rate

Then it adds any annual Social Security or pension income:

Total estimated retirement income = Portfolio income + Social Security / pension

To estimate your retirement income target, the calculator takes your current annual income, multiplies it by the replacement-rate percentage, and adds any extra annual income goal:

Retirement income target = Current income × Replacement rate + Extra desired annual income

The final step is comparing income available with income needed:

Income gap / surplus = Estimated retirement income − Retirement income target

The calculator also shows an inflation-adjusted portfolio value. This is not the amount in your account statement, but a way to express future money in today’s dollars so the result is easier to interpret.

Example: suppose you are 35, plan to retire at 65, already have $85,000 saved, contribute $900 per month, receive an extra $250 per month from employer match, expect a 7% annual return, and use a 4% withdrawal rate. If your current annual income is $90,000, your replacement target is 80%, and you expect $24,000 per year from Social Security, the calculator first projects the retirement portfolio value, then estimates annual income from that portfolio, adds Social Security, and compares the total with your target retirement spending level.

This is a planning tool, not a guarantee. Real outcomes depend on market returns, inflation, contribution discipline, taxes, sequence-of-returns risk, Social Security rules, and how spending changes in retirement. But it gives a clear first estimate of whether you are roughly on track and what type of shortfall or surplus may exist.

Retirement savings calculator (USA): estimate your future portfolio and retirement income gap

A retirement savings calculator helps workers answer one of the most important long-term financial questions: am I saving enough for retirement? In the United States, that answer depends on several moving parts, including current savings, future contribution rate, investment growth, inflation, retirement age, and how much income you want to replace once work stops.

This calculator is designed to make those tradeoffs easier to see. Instead of only projecting a final account balance, it also estimates how much annual retirement income the portfolio may support, adds expected Social Security or pension income, and compares that total with the annual retirement income you are aiming for. That makes the result more practical than a raw growth number by itself.

It is especially useful because retirement readiness is not only about hitting a large round portfolio number. A million dollars may be far more than enough for one household and far below target for another. The right benchmark depends on retirement age, spending level, withdrawal assumptions, and how much guaranteed income you expect from other sources.

This calculator also highlights the power of time and contribution rate. Small increases in monthly savings can have a large long-term effect, especially when there are decades left before retirement. Delaying saving, by contrast, can require much larger monthly contributions later to catch up to the same target.

The tool is not a full retirement plan and does not model taxes, account-specific withdrawal rules, healthcare costs, or every source of future income. But it is a strong planning starting point for people who want a clear and fast estimate of whether their current retirement savings path appears roughly on track.

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