Lumpsum Calculator — Calculate One-Time Mutual Fund Returns
Calculate returns on a one-time lumpsum investment in mutual funds. Compare lumpsum vs SIP and find the right strategy for your investment goals.
While SIP is popular for regular investing lumpsum investment makes sense when you receive a bonus inheritance windfall gain or want to deploy idle funds. Investing a large amount at once in equity mutual funds can be risky if market timing is wrong but historically equity markets have rewarded patient lumpsum investors over 5+ year periods. Our calculator shows how a one-time investment grows with the power of compound interest.
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Key Information
| Parameter | Details |
|---|---|
| Average Equity Fund Returns | 12% - 15% CAGR (5+ years) |
| Large Cap Fund Average | 10% - 13% CAGR |
| Mid Cap Fund Average | 13% - 17% CAGR |
| Small Cap Fund Average | 15% - 20% CAGR (with higher risk) |
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Use Calculator NowFrequently Asked Questions
How much will Rs 1 lakh grow in 10 years?
Rs 1 lakh invested as lumpsum at 12% annual returns will grow to approximately Rs 3.11 lakh in 10 years. At 15% returns it grows to Rs 4.05 lakh. In 20 years the same Rs 1 lakh at 12% becomes Rs 9.65 lakh and at 15% it becomes Rs 16.37 lakh demonstrating the exponential power of long-term compounding.
Lumpsum vs SIP which is better?
If you have a large sum available and the market is at reasonable valuations lumpsum investing has historically given slightly higher returns than SIP because more money is invested for longer. However SIP protects against bad timing through rupee cost averaging. The best approach is often a combination: invest a portion as lumpsum and the rest through SIP over 3-6 months.
When should I invest lumpsum?
Invest lumpsum when you have a time horizon of 5+ years and the market PE ratio is below the historical average (around 20-22 for Nifty 50). If the market seems overvalued consider staggering your investment through a Systematic Transfer Plan which moves money from a liquid fund to equity over 3-12 months.
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Last updated: 24 March 2026