Free SIP Calculator: Project Mutual Fund Returns
Calculate SIP maturity value free. Understand what the projection actually means — and where it misleads.
A SIP calculator takes three inputs — monthly amount, expected return, duration — and produces a number that looks reassuringly precise. ₹10,000 a month for twenty years at 12% returns ₹99.9 lakh. The arithmetic is correct. The confidence the number invites is not, and understanding why is more valuable than the calculation itself.
Why a free SIP calculator matters more in India
SIP investing has become the default entry point into equity markets for salaried Indians, and calculators are how most people decide how much to invest. That makes the gap between what the calculator computes and what actually happens consequential. The formula assumes a constant rate of return, compounded monthly, with no interruption. Real equity returns are nothing like constant — they arrive in violent bursts and long flat stretches. The final figure can still be roughly right over long periods while every year along the way looks nothing like the projection.
The best free options compared
At a glance
Of the 4 options below, 4 are fully free with no paid tier to upgrade to, and 0 offer a free tier alongside paid plans. That distinction matters more than it first appears: a fully free tool cannot restrict you later, whereas a free tier is a commercial decision that can be revised.
| Tool | Cost | Best for |
|---|---|---|
| AMFI SIP calculator | Fully free | Run by the Association of Mutual Funds in India, the industry body itself |
| Groww / Zerodha Coin calculators | Fully free | Clean interfaces with useful visualisations of invested amount versus returns |
| ClearTax SIP calculator | Fully free | Pairs the projection with tax treatment, which most calculators ignore entirely |
| A spreadsheet | Fully free | most honest tool on this list, because it forces you to build in variability |
Each option in detail
AMFI SIP calculator
✓ FREERun by the Association of Mutual Funds in India, the industry body itself. Plain, free of sales intent, and not attached to any particular fund house trying to sell you a product. If you want a neutral number, start here.
Groww / Zerodha Coin calculators
✓ FREEClean interfaces with useful visualisations of invested amount versus returns. Both are broker-operated, so treat the surrounding fund recommendations with appropriate scepticism while using the arithmetic freely.
ClearTax SIP calculator
✓ FREEPairs the projection with tax treatment, which most calculators ignore entirely. Since long-term capital gains on equity funds are taxable above the annual exemption, a post-tax view is closer to what you will actually receive.
A spreadsheet
✓ FREEThe most honest tool on this list, because it forces you to build in variability. Model three scenarios — pessimistic, expected, optimistic — and you will get an outcome range rather than a false single figure. Google Sheets does this free with the FV function.
Note on free tiers: limits and features change often. Everything here was checked in July 2026, but confirm current terms on the provider's own site before committing to a workflow. Official guidance: Income Tax Department GST Portal.
How to choose the right one
Use any calculator for the arithmetic; they all implement the same formula and will agree. What differs is the framing around it. Prefer a neutral source such as AMFI when deciding, and treat broker calculators as convenient rather than impartial. Most importantly, run the calculation at more than one return assumption — the spread between 10% and 14% over twenty years is enormous, and seeing that spread is the point.
If you are assembling a wider free toolkit, these related guides cover adjacent problems: Free Income Tax Calculator India (Old vs New), Free GST Calculator: CGST, SGST and IGST, Free EMI Calculator: Home, Car and Personal Loan.
Verdict
Every SIP calculator gives the same answer, so pick whichever interface you find clearest and use it to compare scenarios rather than to produce one authoritative number. Model a lower return than the historical average, because plans that only survive optimistic assumptions are not plans.
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See all Finance & Tax Calculators →Frequently asked questions
What return should I assume in a SIP calculator?
Indian equity indices have historically delivered roughly 11–13% over long periods, but past returns do not guarantee future ones. Assuming 10–12% for equity funds and 6–8% for debt is a reasonable planning range. Assuming 15% or more sets you up for disappointment.
Is a SIP calculator's output guaranteed?
No. It computes what would happen if returns were constant, which they never are. Mutual funds are market-linked and carry no guarantee. The output is a planning aid, not a promise.
Does the calculator account for tax and expense ratio?
Most do not. Fund returns are quoted after expense ratio, so that is usually already reflected in the rate you enter. Capital gains tax is not, and applies on redemption. ClearTax's version handles tax; most others leave it to you.
Should I use step-up SIP calculations?
If your income grows, yes — a step-up SIP increasing 10% annually produces a substantially larger corpus than a flat one, and better reflects how salaries actually move. Several calculators offer this mode and it is worth using.