Estimate the retirement corpus you need to maintain your lifestyle, based on current monthly expenses, inflation, and expected investment returns.
This tool projects your retirement savings based on your current savings, regular contributions, expected investment returns, and time until retirement, helping you assess whether you're on track to meet your retirement income goals.
Future Value = Current Savings × (1 + r)ⁿ + Annual Contribution × [((1 + r)ⁿ − 1) ÷ r], where r is the annual return rate and n is the number of years until retirement, projecting total accumulated savings at retirement age.
Enter your current age, target retirement age, current savings, regular contribution amount, and expected annual return, and the calculator projects your estimated retirement savings.
Example: Starting with $20,000 at age 30, contributing $500 monthly, and earning a 7% average annual return until age 65 would grow to a substantial retirement balance through decades of compound growth.
Common general guidelines suggest saving enough to replace roughly 70-80% of pre-retirement income, though the right target varies significantly based on individual expenses, other income sources (like Social Security or pensions), and desired retirement lifestyle.
Compound growth means money invested earlier has many more years to grow, so contributions in your 20s and 30s can end up contributing more to your final balance than larger contributions made later, simply due to the extra time for compounding.
Many financial planners suggest using a moderately conservative assumption (accounting for market volatility and sequence of returns risk) for retirement projections, since underestimating needs is generally safer than overestimating them for such an important goal.
Basic retirement calculators may or may not automatically adjust for inflation — it's important to check whether projected figures are in today's dollars or future (inflated) dollars, since this significantly affects how to interpret the projected retirement income.
It's generally recommended to review retirement projections periodically (such as annually or after major life or income changes), since contribution capacity, goals, and market conditions can shift meaningfully over a multi-decade savings horizon.
A retirement calculator projects how your current savings, ongoing contributions, expected investment returns, and years until retirement combine to produce an estimated nest egg by the time you plan to stop working. It typically also factors in your desired retirement age to give you a sense of whether your current savings trajectory is likely to support the retirement lifestyle you're aiming for, or whether you may need to adjust your contribution rate, retirement age, or investment approach.
Thanks to compound growth, money invested earlier has significantly more time to grow, which means even relatively small contributions made in your twenties or thirties can end up outpacing much larger contributions started later, simply because of how many additional years of compounding they benefit from. This is why retirement calculators often show a striking difference in projected outcomes between two people contributing the same monthly amount but starting a decade apart.
Because retirement calculations depend heavily on assumptions about future investment returns, inflation, and your own income and spending changes over potentially decades, it's worth treating any projection as a rough guide rather than a guaranteed outcome, and revisiting the calculation periodically rather than calculating it once and assuming the plan is set in stone. Many people also use a retirement calculator to test different scenarios, such as increasing their contribution rate or delaying retirement by a couple of years.
A retirement corpus that looks comfortable in today's terms may not stretch as far decades from now once inflation is factored in, since the cost of living typically rises steadily over time, eroding the purchasing power of a fixed sum. Many people build a buffer into their retirement target specifically to account for inflation, or use an inflation-adjusted expected return rate in their calculations for a more realistic long-term projection.
Relying on a single savings vehicle for your entire retirement plan can leave you exposed if that particular investment underperforms, which is why many financial planners recommend spreading retirement savings across multiple sources — employer-sponsored plans, personal investment accounts, and government pension schemes where available. Running each income source through a calculator like this one separately, then combining the projections, often gives a more resilient and realistic picture of your total retirement readiness.
Healthcare expenses tend to rise with age and can take up a significant portion of retirement spending, so it's worth padding your retirement target to account for this rather than assuming your expenses will simply match your pre-retirement budget across every category.
How does the 4% withdrawal rule relate to retirement corpus planning? This commonly referenced guideline suggests that withdrawing about 4% of a retirement portfolio annually has historically had a reasonable chance of sustaining a retiree through a 30-year retirement, providing a rough benchmark for estimating how large a retirement corpus needs to be.
Why should retirement planning account for healthcare costs separately from general living expenses? Healthcare costs often rise faster than general inflation and tend to increase with age, making it important to budget for this category somewhat more generously than a simple average inflation-adjusted estimate might suggest.