What is a lumpsum investment?

A lumpsum investment is a single, one-time investment made all at once, as opposed to investing a fixed amount monthly (like a SIP). It is highly recommended for windfalls like bonuses, inheritances, or asset sales.

How is lumpsum return calculated?

Lumpsum future value is calculated using compound interest: P × (1 + r)^n. P is the principal, r is the annual return rate, and n is the number of years.

Is lumpsum better than SIP?

Mathematically, lumpsum beats monthly investing about 66% of the time because your capital is exposed to the market longer and starts compounding immediately. However, spreading investments out reduces volatility risk.

SIP SWP CAGR Goal Lumpsum

Lumpsum Calculator — One-Time Investment Returns

Calculate the future wealth generated by a one-time investment. Discover how compounding interest turns a single windfall into a massive corpus over time.

Lumpsum Investment Amount

₹

₹1 Lakh

Expected Annual Return Rate

Investment Duration

Initial Investment₹1,00,000

Time Horizon10 years

Assumed Growth12% p.a.

The Cost of Waiting

If you delay investing your ₹1.00 L by just 5 years, you would lose out on ₹1,34,351 in compound interest over your 10-year horizon.

Your ₹1.00 L will grow to ₹3.11 L

By investing your capital today and leaving it untouched for 10 years, you will earn ₹2.11 L in pure compound interest.

Total Value₹3,10,585₹3.11 L

Total Value

₹3,10,585

₹3.11 L

Invested

₹1,00,000

₹1.00 L

Total Gains

+₹2,10,585

₹2.11 L

Wealth Multiplier: 3.11x your money

Rule of 72: Money doubles every 6.0 years at 12%

Year-by-Year Wealth Growth

How your portfolio compounds toward ₹3.11 Lakh

Year	Total Invested	Gains Earned	Portfolio Value
Year 1	₹1,00,000 ₹1 Lakh	+₹12,000 ₹12 Thousand	₹1,12,000 ₹1.12 Lakh
Year 2	₹1,00,000 ₹1 Lakh	+₹25,440 ₹25.44 Thousand	₹1,25,440 ₹1.25 Lakh
Year 3	₹1,00,000 ₹1 Lakh	+₹40,493 ₹40.49 Thousand	₹1,40,493 ₹1.4 Lakh
Year 4	₹1,00,000 ₹1 Lakh	+₹57,352 ₹57.35 Thousand	₹1,57,352 ₹1.57 Lakh
Year 5	₹1,00,000 ₹1 Lakh	+₹76,234 ₹76.23 Thousand	₹1,76,234 ₹1.76 Lakh
Year 6	₹1,00,000 ₹1 Lakh	+₹97,382 ₹97.38 Thousand	₹1,97,382 ₹1.97 Lakh
Year 7	₹1,00,000 ₹1 Lakh	+₹1,21,068 ₹1.21 Lakh	₹2,21,068 ₹2.21 Lakh
Year 8	₹1,00,000 ₹1 Lakh	+₹1,47,596 ₹1.48 Lakh	₹2,47,596 ₹2.48 Lakh
Year 9	₹1,00,000 ₹1 Lakh	+₹1,77,308 ₹1.77 Lakh	₹2,77,308 ₹2.77 Lakh
Year 10🎯 GOAL REACHED	₹1,00,000 ₹1 Lakh	+₹2,10,585 ₹2.11 Lakh	₹3,10,585 ₹3.11 Lakh

⚠️ Projections are illustrative only. Actual returns vary with market conditions.

How Lumpsum Compounding Works

A lumpsum investment is simply a single, one-time deposit of capital. When you invest a lumpsum amount into an appreciating asset (like an equity mutual fund, index fund, or stock market portfolio), your money grows through the power of compound interest.

The Mathematical Formula

The future value of a lumpsum is calculated using the standard compound interest formula:

FV = P × (1 + r)^n

FV: Future Value (Your final corpus)
P: Principal Amount (Your initial ₹1,00,000 deposit)
r: Annual interest rate (Your 12% expected return)
n: Number of years (Your 10-year horizon)

Lumpsum vs Systematic Investment Plan (SIP)

A common dilemma is whether to invest a large windfall (like a bonus) all at once (Lumpsum) or spread it out over several months (SIP).

Mathematically, research shows that lumpsum investing beats spreading it out roughly 66% of the time. This is because markets go up more often than they go down. By investing the lumpsum immediately, 100% of your capital begins earning returns on day one. When you spread it out, the uninvested cash sitting in your bank account is experiencing an "opportunity cost" by missing out on potential market gains.