File Your Income Tax @ ₹999Get Started

SIP Calculator with Initial Investment

Find the future value of your monthly/quarterly SIP investments, combined with a one-time initial (lump sum) investment, through mutual funds.

₹5,000

SIP Amount

₹1,00,000

Initial Investment

₹0

Future Value

₹0

Total Investment

₹0

Your Earnings

Grow Your Wealth

Start a SIP today and let the power of compounding grow your wealth steadily over time.

  • Create Your Free Account
  • Start Your Small Contributions
  • Safe and Secure Investments
  • Get Professional Guidance
  • Create Wealth Over Time
Start Investing

What is a SIP Calculator with Initial Investment?

A SIP (Systematic Investment Plan) Calculator is a financial tool that helps investors estimate the potential returns on their mutual fund investments made through regular, periodic contributions. Our SIP calculator with initial investment goes a step further by letting you add a one-time lump sum alongside your recurring SIP, so you can see the combined future value of both amounts together.

This is especially useful if you already hold a lump sum, such as a bonus, maturity proceeds, or inherited money, and want to invest it upfront while continuing to build wealth through disciplined monthly contributions. SIP calculators are particularly useful for investors who want to plan long-term financial goals, such as retirement planning, children's education, or buying a house, with a clear picture of how both a lump sum and regular investments grow over time through the power of compounding.

How SIP Returns with Initial Investment are Calculated

SIP returns are calculated using the concept of compound interest, where your investment grows not just on the principal amount but also on the accumulated interest. When an initial investment is added, the calculator computes two components and adds them together:

  • The future value of your recurring SIP contributions
  • The future value of your one-time initial investment, compounded over the same duration
  • Expected annual rate of return
  • Investment duration in years and compounding frequency

The SIP portion uses the formula: FV(SIP) = P × [(1 + r)^n - 1] / r × (1 + r), where P is the periodic investment, r is the periodic rate of return, and n is the number of periods. The initial investment portion uses the lump sum growth formula: FV(Lump Sum) = I × (1 + r)^n, where I is the initial investment amount.

Total Future Value = FV(SIP) + FV(Lump Sum). Your total investment is the sum of all SIP contributions plus the initial investment, and your earnings are simply the total future value minus this total investment.

Why Add an Initial Investment to Your SIP?

Combining a lump sum with an SIP is a common strategy among investors who want to accelerate wealth creation without giving up the discipline of regular investing:

  • Put idle funds like a bonus, gift, or FD maturity amount to work immediately instead of waiting
  • Give your corpus a head start so it has more time in the market to compound
  • Continue disciplined monthly investing alongside the initial investment for long-term consistency
  • See a single, combined projection instead of calculating SIP and lump sum returns separately

Simply enter an initial investment amount in the calculator above, along with your SIP amount, duration, and expected return, to see your combined projected corpus.

How SIP Calculator Works

Our SIP calculator works in three simple steps:

  1. Input Your Investment Details: Enter your monthly investment amount, an optional one-time initial investment, expected rate of return, and investment duration.
  2. Automatic Calculation: The calculator instantly computes the total investment amount (SIP contributions plus initial investment), expected returns, and the final corpus you can expect to accumulate.
  3. Detailed Analysis: The results show you a breakdown of your total investment, total returns, and the power of compounding over the investment period.

This helps you make informed decisions about your investment strategy and understand how a lump sum combined with regular investments can help you achieve your financial goals over time.

Quarterly SIP Calculator: Plan Your Quarterly Investments

Our SIP calculator also supports quarterly investment planning, making it a versatile tool for investors who prefer making larger contributions every three months. This quarterly SIP calculator follows the same principles of compounding but adjusts the calculation frequency to match your investment cycle.

Benefits of using a quarterly SIP calculator:

  • Perfect for salaried professionals who receive quarterly bonuses
  • Reduces transaction costs compared to monthly investments
  • Allows for larger investment amounts per transaction
  • Maintains the discipline of regular investing while reducing frequency

Whether you choose monthly or quarterly SIP investments, our calculator helps you visualize the growth of your investments over time. Simply select your preferred investment frequency in the calculator, and it will automatically adjust the calculations to show you the projected returns based on your quarterly investment pattern.

What you should know about SIPs

Related Tools