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Lumpsum Calculator

Invested a single amount and want to know what it could grow into? Enter your one-time investment, the expected annual return and how long you'll stay invested to see the maturity value and your total gains.

💰 Lumpsum Investment Calculator ⭐

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Maturity Value
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Amount Invested
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Total Gains
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Growth Multiple

How to Use This Lumpsum Calculator

  1. Enter the amount you're investing in one go.
  2. Enter the expected annual return. Equity funds have historically averaged 10%–14%, debt funds 6%–8% — but past returns never guarantee future ones.
  3. Enter how many years you'll stay invested.
  4. Tap Calculate Returns to see the projected maturity value.

Formula

Maturity = P × (1 + r)^n where P = amount invested, r = annual return rate, n = number of years

Example: ₹5,00,000 invested at 12% for 10 years grows to about ₹15,52,924 — gains of ₹10,52,924, more than double the original amount.

What ₹1 Lakh Becomes Over Time

Maturity value of a ₹1,00,000 lumpsum at different returns and durations:

Return5 Years10 Years20 Years
8%₹1,46,933₹2,15,892₹4,66,096
10%₹1,61,051₹2,59,374₹6,72,750
12%₹1,76,234₹3,10,585₹9,64,629
15%₹2,01,136₹4,04,556₹16,36,654

Look at the 20-year column. This is compounding — the longer you stay invested, the more dramatic the growth becomes.

Lumpsum vs SIP — Which Should You Choose?

LumpsumSIP
How you investOne large amount at onceFixed amount every month
Best whenMarkets are low or you have idle cashYou earn a monthly salary
Timing riskHigh — everything enters at one priceLow — cost averages over time
Discipline neededLess — one decisionMore — but automated

Many investors do both: a lumpsum when a bonus or windfall arrives, and a monthly SIP for regular savings.

Smart Lumpsum Investing Tips

Frequently Asked Questions

What is a lumpsum investment?

Investing a single large amount at one time, rather than spreading it across monthly instalments. Common when you receive a bonus, maturity payout or inheritance.

Is lumpsum better than SIP?

Neither is universally better. Lumpsum works well when you have idle money and markets are reasonably valued. SIP suits regular monthly income and reduces timing risk.

What return should I assume?

A cautious planning figure is 10%–12% for equity funds over the long term and 6%–8% for debt. These are historical averages, not promises — actual returns vary widely.

Are the returns guaranteed?

No. Market-linked investments carry risk and can fall in value. This calculator projects growth at a fixed rate to help you plan — it is not a forecast.

What is CAGR?

Compound Annual Growth Rate — the steady yearly rate that would take your investment from its starting value to its ending value. It smooths out the ups and downs.

How is a lumpsum taxed?

Tax depends on the asset type and how long you hold it. Equity and debt mutual funds follow different rules, and these change from time to time — check current rates or ask a tax advisor.

Can I withdraw before maturity?

Open-ended mutual funds allow withdrawal any time, though an exit load may apply within the first year. Products like tax-saving ELSS have a mandatory lock-in.

What if markets crash after I invest?

Short-term falls are normal. Historically, long-term investors who stayed put recovered and grew — but there is no guarantee, and you should invest only what you can leave untouched.

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This calculator is for illustration only and does not predict actual returns. Market-linked investments carry risk. For investment decisions, consult a qualified financial advisor.