How to Calculate Your SIP Maturity Amount (Formula + Free Tool)

What Is a SIP?

A SIP (Systematic Investment Plan) is a way of investing a fixed amount into a mutual fund every month — like ₹2,000 or ₹5,000. Instead of investing one lump sum, you build wealth gradually, and every contribution starts earning returns the moment it's invested.

The SIP Maturity Formula

The future value of a SIP is usually written as:

SIP value = P × [((1 + r)^(n) − 1) / r] × (1 + r)

Where:

• P = monthly investment amount
• r = monthly rate of return (annual return ÷ 12)
• n = number of monthly instalments (years × 12)

You rarely need the formula by hand, though. The SIP Calculator does it instantly: enter your monthly amount, expected annual return and duration, and it shows the total invested, the projected value and your estimated gain.

Example: ₹5,000 Monthly for 10 Years

Monthly SIP	Expected return	Duration	Invested	Projected value
₹5,000	12%	10 years	₹6,00,000	approx ₹11,60,000
₹5,000	12%	15 years	₹9,00,000	approx ₹25,00,000
₹10,000	10%	10 years	₹12,00,000	approx ₹20,60,000

The longer you stay invested, the more of the final corpus comes from returns — that's the power of compounding at work.

Why Compounding Matters

Every month's return is reinvested, so you start earning returns on your returns. Five years in, growth accelerates noticeably. That's why:

• Starting even ₹2,000/month early beats starting ₹8,000/month late
• Increasing your SIP by 10% every year dramatically boosts the final corpus
• Pausing or stopping hurts more than lowering the amount

How Compounding Works Over Time

Tips to Use the Calculator Correctly

• Be realistic with returns — equity SIPs have historically returned roughly 10–14%, but past performance isn't a guarantee
• Add a step-up — if your fund allows, raise the SIP yearly with salary hikes
• Use a goal, not a guess — work backward from a retirement or child-education target
• Never stop a SIP in a market dip; that's when units are cheapest

Try different combinations in the SIP Calculator to see how a small monthly amount compounds over 10, 20 or 30 years.

FAQ

• How is SIP maturity calculated? Monthly contributions are compounded at the expected rate of return: every instalment earns returns, and those returns are reinvested.
• Is a SIP better than a lump sum? For beginners and wage earners, yes — it builds discipline and averages your purchase cost over months and years.
• Can yearly SIP returns be guaranteed? No. Returns vary with market performance; the calculator gives an estimate based on the return rate you enter.
• What happens if I stop my SIP? The money already invested keeps earning returns — you just stop adding new units.