Estimate how much you may need to retire by combining savings growth, income replacement, inflation, and Social Security-style retirement income in one easy planning tool.
Enter your retirement information to see projections
Input your current age, planned retirement age, life expectancy, and current retirement savings.
Include your income, expected income growth, investment return, inflation rate, and other retirement income.
Choose future retirement savings as a percent of income or fixed yearly amount, then set your income goal.
See projected savings at retirement, annual income needs, shortfalls, and whether your money may last through retirement.
The first number to review is your projected savings at retirement. This is the future value of your current balance plus future annual contributions, grown by your assumed investment return. It tells you how large your retirement portfolio may be on day one of retirement, but it does not tell the whole story by itself.
Next, look at the amount needed at retirement. This is the present value of your expected retirement withdrawals across your retirement years after other income is applied. In plain English, it is the pile of money you would need at retirement age to support the retirement income replacement rate you selected.
Your surplus or shortfall compares those two numbers. A surplus means the model expects your projected assets to cover your withdrawal rate through your chosen life expectancy. A shortfall means you may need to save more, retire later, lower your target spending, or add more outside income. The longevity check then estimates whether your money lasts through the full retirement period or runs out earlier.
If you want to calculate retirement savings manually, split the job into two phases. In the accumulation phase, each year starts with your current balance, applies your annual contribution, and then grows that total by your expected annual return. A simplified year-by-year model looks like this:
End of year balance = (starting balance × (1 + return)) + annual contribution
If your savings are set as a percentage of income, your annual contribution changes each year because income grows. If your salary rises by 2% each year and you save 12% of income, the contribution in year two is larger than in year one. That is why salary growth matters in a retirement savings calculator.
In retirement, the logic flips. Your portfolio keeps earning returns, but it also has to fund withdrawals. First estimate the spending you want in retirement. Then subtract Social Security, pension income, and any other recurring retirement income. The remaining gap is the amount your portfolio must cover each year. A basic retirement drawdown model looks like this:
End of retirement year balance = (starting balance × (1 + return)) - net annual withdrawal
Inflation matters because the same lifestyle usually costs more over time. If you need $70,000 in the first year of retirement and prices rise by 3% a year, the next year may require about $72,100 to buy the same goods and services. That is why a strong retirement plan tests both investment return and inflation rate instead of using only a 4% rule shortcut.
Assume you are 35, plan to retire at 67, and expect to live to 92. You earn $90,000 a year, already have $120,000 saved, and plan to save 12% of income each year. You expect a 7% annual return, 3% inflation, and $2,200 a month from Social Security.
Your first annual contribution is $10,800. If income grows by 2% a year, your contributions rise gradually over time. By retirement, your income would be much higher than $90,000, so an 80% income replacement goal would also be much higher than 80% of today’s pay. That is why retirement calculators that include salary growth are more useful than calculators that freeze your current income.
In retirement, if your first-year target income is about $120,000 and Social Security covers $26,400 per year, your portfolio still needs to fund roughly $93,600 in the first year before tax. That number then grows with inflation. The calculator handles that full sequence automatically and shows whether your projected balance can support those withdrawals through age 92.
If you are 25, earn $60,000, and save 10% with a 7% return, your first contribution is $6,000 a year. The biggest advantage at this stage is time. Even modest annual contribution increases can beat larger late-career catch-up efforts because compound growth has decades to work.
Suppose you are 42, earn $110,000, and have $180,000 saved. Saving 12% means $13,200 per year. Saving 15% means $16,500 per year. A 3-point difference may not feel huge in a monthly budget, but over 20-plus years it can create a meaningful gap in retirement income replacement and lower your future withdrawal rate.
A 60-year-old with $700,000 saved may wonder whether retiring at 65 or 67 makes more sense. Two extra work years can help in three ways at once: you keep contributing, your portfolio has more time to grow, and you shorten the number of years your money must last. That is often one of the strongest levers in retirement planning.
If one scenario includes a $1,800 monthly pension and another does not, the annual difference is $21,600. Over a 25-year retirement, that recurring income can sharply reduce the size of the portfolio you need at retirement. The same idea applies to rental income or phased retirement earnings.
If you are behind, use catch-up contributions in tax-advantaged accounts, review your asset allocation, and test a later retirement date. Raising annual contribution levels from $12,000 to $20,000 can be more practical than trying to hit a very high return target that adds more investment risk than you are willing to accept.
One of the biggest content gaps on retirement calculator pages is what happens outside the math of compound growth. In real life, retirement planning is not only about return assumptions. It is also about when you claim Social Security, how taxes affect your withdrawals, and what healthcare costs do to your annual spending.
Social Security can significantly reduce the pressure on your personal savings. Claiming early usually lowers monthly benefits, while waiting longer can increase them. This means two people with the same current savings may need very different portfolios if one claims benefits at 62 and the other delays. If you are planning to retire before claiming Social Security, model those bridge years carefully because your withdrawal rate may be much higher at the start of retirement.
Taxes matter too. A retirement income calculator may show the gross income you need, but your spendable income depends on the tax mix of your accounts. Traditional 401(k) and IRA withdrawals are generally taxable. Roth withdrawals may be tax-free if qualified. Social Security may be partly taxable at the federal level depending on your combined income. That means two retirees with the same gross retirement income can have different after-tax cash flow.
State taxes can widen that difference. Florida and Texas do not tax personal income, so many retirees there keep more of each withdrawal. California does not tax Social Security benefits, but it generally taxes traditional retirement account distributions and pension income. If you plan to retire in California, you may want to target a larger gross income than a similar household retiring in Florida or Texas.
Healthcare is another major variable. Medicare lowers some costs, but premiums, deductibles, prescriptions, dental care, hearing aids, and long-term care can still push annual spending higher than expected. When you choose a retirement income replacement rate, think about healthcare costs as a separate line item instead of assuming your expenses will simply fall after work ends.
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Answers to common retirement planning and retirement savings calculator questions.
You need enough assets to cover the part of your retirement spending that Social Security, pensions, and other income do not cover. A practical estimate starts with 70% to 90% of your pre-retirement income, then adjusts for housing, healthcare, debt, taxes, and lifestyle goals.
Many workers aim to save 10% to 15% of gross income, but the right number depends on your age, current savings, retirement age, expected return, and target income. If you start late, want to retire early, or expect higher spending, you may need to save more.
Social Security lowers the amount you must fund from personal savings. In a retirement calculator, add estimated monthly Social Security or pension income as other retirement income so your projected withdrawal need reflects your full income mix.
A common planning range is 70% to 90% of pre-retirement income. Higher earners may need a smaller percentage if they save heavily, while people who plan to travel more, help family, or face high medical costs may need a higher percentage.
Estimate annual retirement spending, subtract Social Security and pension income, then project how much yearly savings and current balances can grow before retirement. After retirement, apply investment growth and subtract your annual withdrawals year by year through your expected lifespan.
Yes. Some people retire before claiming Social Security and use personal savings for the gap years. This can increase future Social Security benefits if you delay claiming, but it also increases the amount your savings must cover early in retirement.
California does not tax Social Security benefits, but it generally taxes withdrawals from traditional IRAs, 401(k)s, and pensions as ordinary income. That means California retirees often need a larger gross withdrawal than retirees in states with no income tax.
Your savings last as long as investment growth can keep up with your withdrawals. The answer depends on your starting balance, annual return, inflation, retirement age, life expectancy, and how much outside income reduces your yearly withdrawal need.