Build your retirement estimate
Enter your current situation and a few planning assumptions.
Browser-based calculation: the financial assumptions you enter are calculated locally on this page and are not submitted to a Utiliverse server.
Your retirement snapshot
A long-term estimate based on the assumptions you entered.
Retirement savings projection
This table gives you a simplified view of how your retirement savings could grow before retirement. It assumes your current balance remains invested and that your annual contributions continue.
| Age | Starting balance | Contributions | Estimated growth | Ending balance |
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About the Retirement Calculator
Planning for retirement is essentially a long-term balancing act between the lifestyle you want, the amount you save, the amount your investments may grow, inflation and how long your money needs to last. There is no single retirement number that works for everyone. Someone who wants to retire at 55 and travel extensively will have a very different target from someone who plans to work until 70 and live on a modest budget.
This retirement calculator is designed to give you a practical starting point. It estimates how much money you may need when you retire, projects how much your current savings and future contributions could potentially grow to, and estimates the income your portfolio could provide during retirement. The calculator also allows you to account for other monthly retirement income, such as Social Security, a pension or an annuity.
How to use the calculator
Begin by entering your current age and the age at which you hope to retire. The number of years between those two ages determines how long your current savings have to potentially grow and how long you have to make additional contributions. Next, enter your planning age. This is the age through which you want the retirement plan to be modeled. For example, someone retiring at 65 might use 90 or 95 as a planning age.
Enter your current annual income. The calculator uses your income as a starting point for estimating the lifestyle you may want to maintain in retirement. You can then select a percentage of your final working income that you would like to replace. A target of 75%, for example, means the calculator assumes you want retirement income equal to approximately three-quarters of your projected pre-retirement income.
The income-growth assumption is important because your income may not remain constant. If you currently earn $60,000 and expect your income to increase over time, your final working-year income could be significantly higher than today's salary. A higher projected income can therefore increase the amount of money you may want to have available in retirement.
Your investment return matters
The expected investment return is one of the most influential assumptions in a retirement projection. The calculator uses it to estimate how your existing savings and future contributions could grow before retirement. A higher assumed return can produce a larger projected balance, while a lower return produces a more conservative result.
It is important not to treat an assumed return as a promise. Investment performance changes from year to year. Stocks can fall, bond returns can change, and even diversified portfolios can experience periods of significant volatility. A retirement plan is generally more useful when you test several return assumptions rather than relying on a single optimistic number.
Inflation can change the picture
Inflation reduces the purchasing power of money over time. A retirement income that seems comfortable today may not provide the same lifestyle decades from now. For that reason, this calculator accounts for inflation when estimating future retirement needs.
For example, if inflation averages 3% for many years, everyday expenses can become substantially more expensive. Retirement planning should therefore focus not only on the number of dollars you expect to have, but also on what those dollars are likely to buy when you retire.
Why current savings are important
Your existing retirement savings have a major advantage: time. Money invested today may have decades to potentially compound. Even relatively modest balances can become meaningful over long periods when contributions and investment growth continue.
Enter the total amount you currently have saved for retirement. This can include accounts such as a 401(k), 403(b), IRA or other investment accounts that you expect to use for retirement. If you have several accounts, you can combine their balances for this basic projection.
Future contributions make a difference
The annual contribution field represents the amount you expect to add to retirement savings each year. Increasing your contribution can have a substantial effect over a long period because the additional money may also have years to compound.
If your employer provides a retirement-plan match, consider including the employer contribution when determining the amount being added to your retirement account. Employer matching programs can be an important part of a retirement strategy.
Other retirement income
The other-income field allows you to include predictable income that you expect to receive after retiring. Examples can include Social Security, a pension or certain annuity payments.
Including this income can reduce the amount your investment portfolio needs to provide. For example, if your desired retirement lifestyle requires $6,000 per month and you expect $2,000 per month from other sources, your portfolio would need to provide approximately $4,000 per month under the simplified assumptions used here.
How much should you save?
There is no universal savings percentage that guarantees a successful retirement. The amount you may need to save depends on your age, current balance, retirement date, spending target, other retirement income, investment results and inflation. Generic rules of thumb can be useful for orientation, but they should not replace a calculation based on your own assumptions.
Your own circumstances matter more than a generic rule. Housing costs, healthcare expenses, debt, family obligations, taxes, location, travel plans, Social Security benefits and desired retirement age can all change the amount you need.
Projected final income = current income × (1 + income growth)years to retirement
Target retirement income = projected final income × selected replacement percentage
Portfolio income need = target retirement income − expected other retirement income
Real return ≈ (1 + investment return) ÷ (1 + inflation) − 1
Projected savings = future value of current savings + future value of annual contributions
Understanding the retirement withdrawal estimate
Once you reach retirement, your investment balance becomes a source of income rather than simply an accumulation account. The calculator estimates how much of your projected retirement balance could support your desired retirement income under the assumptions you entered.
The first-year withdrawal shown by this calculator is a planning estimate. Actual sustainable withdrawals depend on investment performance, inflation, taxes, market volatility and the order in which investment returns occur. A portfolio experiencing poor returns early in retirement can face greater pressure than a portfolio experiencing those same returns later.
Why retirement age matters
Retiring earlier can make the planning challenge significantly larger. You have fewer working years to contribute and potentially more years during which your savings must provide income. Working longer can have the opposite effect: additional contributions have more time to grow, while the number of years you need retirement savings to support may decrease.
This does not mean that everyone should work longer. Retirement is a personal decision influenced by finances, family, health, employment and lifestyle. The purpose of the calculator is to help you see how changing the assumptions can affect the financial side of that decision.
Use this calculator as a planning tool
The best way to use a retirement calculator is to experiment with different scenarios. Try retiring earlier and later. Change the investment return. Increase or decrease annual contributions. Adjust your retirement-income target. Test different inflation assumptions. Then compare the results.
If a small change in one assumption dramatically changes the result, that is useful information. It tells you which parts of your plan deserve additional attention. Retirement planning is not about predicting the future perfectly; it is about understanding the range of possibilities and making decisions that improve your financial flexibility.
Nominal return, inflation and real return
The investment-return field is a nominal annual return assumption. The calculator uses that nominal rate to project the growth of current savings and future contributions before retirement. For the retirement-spending target, it then combines the investment-return and inflation assumptions into a simplified real return: (1 + nominal return) ÷ (1 + inflation) − 1. This helps express the retirement-income calculation in purchasing-power terms, but it remains a simplified model rather than a forecast of actual year-by-year markets or inflation.
What this simplified model does not include
The calculator intentionally leaves out several factors that can materially affect a real retirement plan. It does not model investment fees, taxes, account-specific tax treatment, healthcare costs, required minimum distributions, contribution limits, employer-plan rules, changes in Social Security benefits, or different asset allocations over time. It also assumes a smooth annual return instead of modeling the actual sequence of positive and negative market years.
That last point matters because two portfolios can earn the same average return but experience very different outcomes when withdrawals begin at different points in the market cycle. Market losses near the start of retirement can put more pressure on a portfolio that is simultaneously funding withdrawals. Use the calculator as a scenario tool, not as a promise that a steady return will occur every year.
Worked example using the default inputs
With the calculator's current default example — age 35, retirement at 65, planning through age 90, $75,000 of current income growing 3% per year, a 75% income-replacement target, $50,000 already saved, $7,500 contributed each year, a 7% nominal return assumption, 3% inflation and $2,000 per month of other retirement income — the model estimates a required retirement savings target of about $1,779,858. Under the same assumptions, existing savings plus the entered annual contributions are projected to grow to about $1,089,069 by retirement.
The calculator's separate “estimated monthly saving needed” figure is based on the contribution required to reach the modeled target after first projecting the growth of current savings. In this default scenario, that figure is approximately $1,234 per month. The result is especially sensitive to the return, inflation, retirement age, planning age and retirement-income assumptions, so changing one input at a time is a useful way to see what drives the result.
Social Security and other retirement income
The “other monthly retirement income” field is intentionally generic. If you plan to include Social Security, use a personalized estimate rather than assuming that today's benefit amount will automatically apply in the future. The Social Security Administration provides retirement estimates based on your earnings record and lets you compare different claiming ages. Pension and annuity amounts should likewise be based on the plan or contract information available to you.
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Last reviewed: September 30, 2026 · Calculator logic, assumptions and reference links reviewed against the current implementation.