Retirement Planning Calculator

What this calculator does

The retirement planning calculator answers two questions in one. First, what corpus do you need? Using your annual expenses, an inflation assumption and a withdrawal multiplier, it produces a target stated in future money. Second, will you reach it? It takes your current net worth, your expected return and your regular contributions, then projects net worth forward year by year and compares it with the target at each point.

The result is a projection you can read at a glance: the year your line crosses your target, how far short you are if it never does, and what that implies for your retirement age. The same yearly projection powers the live dashboard, so the numbers here mirror what you can adjust interactively on the site.

Who it's for

The calculator suits anyone with a rough sense of their expenses and savings who wants a first estimate of retirement readiness. It works for people decades from retirement who are choosing how much to contribute, and for people close to retirement who want to sanity-check whether their plan holds. Because it takes a handful of inputs and returns a clear answer, it is a good place to start before deeper tools like theMonte Carlo simulator.

Inputs you'll need

• Current net worth — everything you own minus what you owe, as your starting point.
• Expenses — your annual household spending, since the target is built from this.
• Expected return — the annual return you assume your portfolio earns.
• Inflation — the rate you expect prices to rise.
• Contributions or SIP — what you add each year (or each month) while still working.
• Retirement age — the age when you plan to stop earning and start withdrawing.

How the calculation works

The projection works in real terms: returns and inflation are both stated annually, and the calculator uses the difference between them as your real return. That keeps the target and the projected line in comparable money. Each year, the corpus grows by the real return, receives your contributions, and is compared with an inflation-adjusted target, which climbs every year too.

Compounding is the engine. Money invested early earns returns that then earn returns themselves, so small contributions made years before retirement often matter more than large ones made near it. The projection makes this visible — early years look flat, later years accelerate.

A worked example

Say your household spends ₹6,00,000 a year, you assume 7% returns and 5% inflation, and you want a 25x corpus. The target is 25 times 6 lakh — roughly ₹1.5 crore — adjusted upward for inflation to the future date. With a current net worth of ₹25 lakh, a monthly SIP of ₹30,000 and a retirement age of 50, the projection shows whether your line crosses the target before 50, and by how much. These figures are hypothetical and only illustrate how the pieces fit together.

What the results mean

If the projected line crosses the target before your retirement age, you are on track — the crossing year tells you how early. If it stays below, the gap tells you what to change: a larger SIP, a later retirement age, a higher assumed return, or a more conservative spending target. The output is directional, not a prediction. It shows what happens if your assumptions hold, which is precisely why testing different assumptions matters.

Assumptions and limitations

Every output rests on the numbers you enter, and those numbers are guesses about the future. Returns are not stable from year to year — equities fall as well as rise — and inflation is not constant. The projection assumes steady returns, which is why the Monte Carlo simulator is the right tool to stress-test the same plan across thousands of variable return paths. The calculator ignores taxes and fees unless you fold them into your assumptions, and it assumes your retirement expenses match today's, adjusted only for inflation.

Retirement planning calculator for India

The calculator works naturally with rupees and Indian habits of saving. Annual expenses are commonly quoted in lakhs, a target corpus lands in crores, and monthly contributions map directly onto the SIPs used in mutual funds. Retirement-specific instruments such as EPF, PPF and NPS, alongside an equity-versus-debt mix across mutual funds and debt funds, are the common building blocks many Indian households use to fund the same projection. This section is general information only and is not tax advice — the treatment of these instruments in your specific case can vary.

Educational tool. This calculator is not financial advice. Projections are estimates based on the assumptions you enter; actual market returns are uncertain and no result is a guarantee. For personal decisions, consider a qualified financial professional.