15 Lakh Compound Interest Calculator
'/%3E%3Ccircle cx='48' cy='39' r='19' fill='%23f2c9a5'/%3E%3Cpath d='M27 35c3-16 39-17 42 2-8-8-27-9-42-2z' fill='%23374151'/%3E%3Cpath d='M21 86c5-24 49-28 56 0z' fill='%232563eb'/%3E%3Ccircle cx='41' cy='41' r='2' fill='%23111827'/%3E%3Ccircle cx='55' cy='41' r='2' fill='%23111827'/%3E%3Cpath d='M42 52c4 3 9 3 13 0' stroke='%2392400e' stroke-width='3' fill='none' stroke-linecap='round'/%3E%3C/svg%3E)
Reviewed by Calculator Editorial Team
This calculator helps you determine the future value of ₹15 lakh (₹1,500,000) invested at a given annual interest rate, compounded annually. You can adjust the principal amount, interest rate, and investment period to see how compounding affects your investment over time.
How to use this calculator
To calculate compound interest on ₹15 lakh:
- Enter the principal amount (₹1,500,000 by default).
- Set the annual interest rate (e.g., 8% for a conservative investment).
- Choose the investment period in years (e.g., 10 years).
- Click "Calculate" to see the future value of your investment.
The calculator will display the future value of your investment, the total interest earned, and a growth chart showing how your investment grows over time.
How compound interest works
Compound interest means that interest is earned on both the initial principal and the accumulated interest from previous periods. This creates exponential growth over time.
Compound Interest Formula
A = P × (1 + r/n)nt
Where:
- A = Future value of the investment
- P = Principal amount (₹1,500,000)
- r = Annual interest rate (in decimal)
- n = Number of times interest is compounded per year (1 for annual compounding)
- t = Time the money is invested for (in years)
For annual compounding (n=1), the formula simplifies to:
A = P × (1 + r)t
The key benefit of compound interest is that it allows your money to grow faster over time compared to simple interest, which only earns interest on the original principal.
Example calculation
Let's calculate the future value of ₹1,500,000 invested at 8% annual interest for 10 years:
Example Calculation
A = ₹1,500,000 × (1 + 0.08)10
A = ₹1,500,000 × 2.158925
A ≈ ₹3,238,387.50
After 10 years, your investment would grow to approximately ₹3,238,387.50, with ₹1,738,387.50 in interest earned.
FAQ
- What is the difference between simple and compound interest?
- Simple interest is calculated only on the original principal amount, while compound interest is calculated on the principal and also on the accumulated interest of previous periods. This means compound interest leads to faster growth over time.
- How often is the interest compounded in this calculator?
- The calculator assumes annual compounding, which is the most common method for long-term investments. You can adjust the compounding frequency in the calculator if needed.
- Is compound interest taxable?
- In most countries, interest income from investments is taxable. The tax treatment depends on your country's tax laws and the type of investment. It's important to consult with a financial advisor or tax professional for specific advice.
- Can I use this calculator for retirement planning?
- Yes, this calculator can help you estimate the future value of your retirement savings. However, it's important to consider other factors like inflation, required income in retirement, and investment risks when planning for retirement.