Lumpsum Calculator

Lumpsum versus SIP — how to think about it

A lumpsum deploys your entire principal immediately, so every rupee begins compounding from day one at the assumed rate. A SIP spreads entries over time, which can reduce timing risk (you buy more units when markets are lower) but delays full deployment. Neither approach is universally “better” — it depends on horizon, market valuations, cash-flow discipline, and fees.

Quick thought experiment: If you had ₹1,20,000 today, one option is to invest it all as a lumpsum; another is to run a ₹10,000/month SIP for 12 months. The lumpsum participates in a full year of growth on the whole amount (with volatility), while the SIP only puts ₹10,000 to work in month one, ₹20,000 by month two, and so on. In strong rising markets, lumpsums often win on paper; in falling markets, SIP can look smarter because later instalments buy cheaper. Real life includes crashes and recoveries — use scenarios, not one forecast.

Risk: A large lumpsum into volatile assets just before a downturn can sting emotionally and financially. Some investors split deployment (phased investing) or mix debt and equity. This calculator uses a constant annual return for illustration; real paths zigzag. Taxes (STT, capital gains), expense ratios, and exit loads are not modeled — net returns may be lower.

Compare with our SIP calculator using the same annual return assumption to see how timing of cash flows changes ending wealth. For debt-like certainty, see FD or PPF tools — different risk profiles entirely.

Formula: A = P × (1 + r)ⁿ with annual compounding, where P is principal, r is the decimal annual rate, and n is years. Continuous or monthly compounding would differ slightly; we keep annual for clarity.