15x5x3 Rule: In how many years your monthly Rs 10,000 SIP will grow to Rs 50 lakh, Rs 1 crore, and Rs 1.50 crore; know through

There are many options available today to invest in SIP. However, one of the effective rule of SIP investment is - 15x5x3 Rule. Let's know how the 15x5x3 rule will help you to become a lakhpati in 15 years, 20 years, and 23 years. 

Suppose you are investing Rs 10,000 monthly in SIP. Now, according to the 15x5x3 SIP rule:
- First "15": Invest Rs 10,000 monthly for 15 years.
- Second "5": Extend it for 5 years.
- Third "15": Further extend it for the next 3 years.

Using the SIP calculator, if you invest Rs 10,000 every month at an expected annualised interest rate of 12 per cent, your total investment over 15 years will amount to Rs 18,00,000. You can expect to earn approximately Rs 32,45,760 in long-term capital gains. And the total corpus at the end of 15 years is estimated to be Rs 50,45,760.

If you extend this SIP investment for an additional 5 years, while continuing to invest Rs 10,000, you will have almost double the amount accumulated. Using the SIP calculator, your total investment will reach Rs 24,00,000 over 20 years. At the expected annualised interest rate of 12 per cent, you will earn Rs 36,58,288 (approx.) in long-term capital gains, resulting in total corpus of Rs 99,91,479.

If you extend it once more for 3 years, i.e. for a total of 25 years, your investment will grow to Rs 30,00,000. The estimated long-term capital gains will be Rs 1,59,76,351, bringing your total amount to Rs 1,59,76,351.