Overview
India's investment landscape spans government-backed instruments (PPF, EPF, NPS), market-linked vehicles (mutual funds via SIP), fixed-income options (FDs), and everything in between. Each category has its own return profile, tax treatment, risk level, and liquidity constraints.
Choosing where to invest — and how much to allocate across instruments — requires modelling actual numbers, not guessing. These seven free calculators cover the full landscape of Indian retail investment options, from the safety of PPF to the growth potential of equity SIPs. Each is free, requires no registration, and produces shareable results instantly.
What to Look For
Accurate, scheme-specific formulas. A PPF calculator that uses a simple compound interest formula is wrong — PPF interest is calculated on the minimum balance between the 5th and last day of each month, not on the year-end balance. EPF has its own compounding rules and separates employee, employer, and EPS contributions. Look for calculators that follow the actual scheme rules, not a simplified approximation.
Instant results without sign-up. The best calculators produce results the moment you change an input. No email address, no account, no waiting — just immediate, shareable numbers. Every calculator in this list works this way.
Shareable output via URL state. When you model a scenario — say, ₹10,000 SIP for 15 years at 12% — the URL should update to encode your inputs so you can share or bookmark the exact scenario. This matters when comparing options or discussing with a spouse, parent, or financial advisor.
Indian-specific inputs. Rupee denomination, financial year alignment (April–March), Indian rate benchmarks (EPF at 8.25%, PPF at 7.1%), and Indian tax slabs. Calculators built for Western markets do not handle these correctly.
Our Picks
SIP Calculator
The SIP Calculator is the most widely used investment calculator in India — and for good reason. Systematic Investment Plans in equity mutual funds are the recommended starting point for most retail investors, combining rupee cost averaging (which reduces timing risk) with the compounding power of staying invested over the long term.
Enter your monthly SIP amount, expected annual return, and investment duration. The calculator shows total amount invested, estimated returns, and total corpus at maturity — along with a chart that visually demonstrates the compounding curve. A ₹5,000 monthly SIP at 12% per annum over 20 years produces a corpus of approximately ₹49.9 lakh on just ₹12 lakh invested — making the compounding story instantly visible.
Use this to answer: how much should I invest monthly to reach a specific goal? Or: what will my current SIP amount grow to over 10, 15, or 20 years?
PPF Calculator
The PPF Calculator models the Public Provident Fund — one of the most tax-efficient savings instruments available in India. PPF falls under the EEE (Exempt-Exempt-Exempt) category: contributions are deductible under Section 80C, interest earned is tax-free, and the maturity amount is tax-free.
At the current government rate of 7.1% per annum (compounded annually), ₹1,50,000 invested per year for 15 years (the minimum lock-in) grows to approximately ₹40–42 lakh. The calculator handles the correct PPF compounding methodology and lets you model extensions (PPF can be extended in 5-year blocks after the initial 15-year term), partial withdrawals from year 7, and the effect of varying annual contributions.
Essential for salaried employees planning their Section 80C investments and anyone looking for guaranteed, tax-free long-term savings.
EPF Calculator
The EPF Calculator models your Employee Provident Fund balance — the mandatory retirement savings account for salaried employees in India earning up to ₹15,000 basic salary (though many employers enrol all employees regardless).
The calculator handles three contribution streams correctly: your 12% of basic salary, the employer's 3.67% of basic salary into EPF, and the employer's 8.33% into EPS (Employee Pension Scheme — not part of the EPF corpus). At the current EPF interest rate of 8.25% per annum, it shows your projected corpus at retirement, helping you understand how much EPF alone will provide versus how much additional savings you need.
Particularly useful for employees nearing a job change, to understand the implications of withdrawing vs transferring EPF balance.
NPS Calculator
The NPS Calculator models the National Pension System — India's voluntary, market-linked retirement savings scheme with a uniquely powerful additional tax benefit under Section 80CCD(1B) of ₹50,000 per year over and above the regular ₹1.5 lakh 80C limit.
Enter your age, monthly contribution, expected return, and the allocation between equity (Tier E), corporate bonds (Tier C), and government securities (Tier G). The calculator projects your corpus at age 60, the mandatory annuity purchase (40% of corpus must be annuitised), and the lump sum available at maturity (60% of corpus, tax-free). For a 30-year-old investing ₹5,000 per month at an 80/20 equity-bond split, the projected NPS corpus at 60 is substantial — run the numbers to see why NPS is particularly compelling for the additional 80CCD(1B) deduction.
Fixed Deposit Calculator
The Fixed Deposit Calculator helps you compare FD options across different tenures, banks, and compounding frequencies. India's FD market is highly fragmented — small finance banks often offer 8.5–9.5% on 1–3 year deposits versus 6.5–7.5% at large PSU banks — and the compounding frequency (monthly vs quarterly vs annually) materially affects the effective yield.
Enter the principal, interest rate, tenure, and compounding frequency. The calculator shows simple interest vs compound interest totals, maturity value, and quarterly interest payout amount if you are in the regular income stage of life. Senior citizen rates (typically 0.25–0.50% higher) are also supported.
Lumpsum Calculator
The Lumpsum Calculator models one-time investment scenarios — when you have a windfall, a bonus, a maturity receipt, or an inheritance to deploy. Unlike SIP, lumpsum returns depend heavily on entry timing: investing at a market peak and investing at a market trough produce dramatically different outcomes over the same period.
The calculator shows the growth of a one-time investment at a specified expected annual return over your chosen duration, providing the final corpus and total returns. It complements the SIP Calculator perfectly: use SIP for regular monthly savings and lumpsum for any one-time amounts.
CAGR Calculator
The CAGR Calculator is the tool that lets you compare all your investments on an equal footing. CAGR (Compound Annual Growth Rate) strips away the noise of varying tenures and tells you the annualised return of any investment.
Enter your initial investment, final value, and number of years. The calculator returns the CAGR percentage. This is the only correct way to compare, say, an FD that doubled in 9 years (CAGR ≈ 8%) with a mutual fund that tripled in 7 years (CAGR ≈ 17%). Use it to audit your existing portfolio, evaluate past investment decisions, and benchmark future expectations against historical data.
How We Evaluated
Every calculator on this list was evaluated against four criteria:
Formula accuracy. PPF and EPF calculators were verified against the scheme-specific compounding rules published by the Ministry of Finance and EPFO respectively. SIP uses the standard future value of annuity formula. NPS accounts for the 60/40 split at maturity. No calculator was included that uses simplified approximations where the official scheme rules differ.
No registration required. Every calculation runs entirely in the browser with no account creation, email submission, or paywall.
Free, always. No premium tier, no calculation limit.
Shareable outputs. Each calculator encodes your inputs in the URL, so any scenario you build can be shared with a link — useful when discussing options with a family member or financial adviser.