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SIP & Wealth Growth Calculator with Step-Up Plan

Simulate compound growth on systematic monthly mutual fund investments, one-time lumpsums, or stepped contribution schedules.

Monthly Investment Plan

Adjust deposit amounts, expected rates, and duration

$
%
Yrs
🚀 Step-Up SIP (Annual Salary Increments)Automatically increase monthly deposits each year

Total Future Value

$475,931

Accumulated after 15 years

Estimated Returns

$295,931

Pure compound growth gain

Invested Amount

$180,000

180 total contributions

Wealth Multiplier

2.64x

Return on capital invested

Portfolio Breakdown

Proportion of invested principal vs accrued compounded returns

Target Corpus$475,931
Amount Invested
$180,00037.8%
Estimated Returns
$295,93162.2%

Year-by-Year Wealth Trajectory

Inspect your cumulative investment vs compounded returns across the full timeline

Estimated Returns
Invested Capital
Hover over any year to inspect milestone details
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Wealth Engineering & Systematic Accumulation10 min readSanguine Straphanger

The Compounding Dynamics of Systematic Investment Plans: Dollar-Cost Averaging, Growth Multipliers, and Step-Up Modeling

Systematic Investment Plans (SIPs) transform volatile market swings into compounding tailwinds through disciplined periodic capital allocation. Below is an in-depth mathematical exploration of annuity future value formulas, cost averaging mechanics, and stepped contribution schedules.

The Compounding Dynamics of Systematic Investment Plans

A Systematic Investment Plan operates on the financial principle of an Annuity Due, wherein regular periodic cash flows are invested at the start of each month and immediately begin compounding at the underlying portfolio growth rate.

Formula 1: Future Value of Systematic Monthly Investments (SIP)Annuity Due Model
FV = P × [ ((1 + i)n − 1) / i ] × (1 + i)

FV = Future value of accumulated wealth at tenure completion.

P = Monthly SIP installment amount.

i = Periodic monthly compounding interest rate (Annual CAGR / 12 / 100).

n = Total number of monthly contributions (Tenure Years × 12).

Rupee / Dollar-Cost Averaging Mechanics

Fixed monthly contributions buy more units when prices are lower and fewer units when prices are higher. The average cost per unit is the harmonic mean of the purchase prices, which is never higher than their simple average.

Frequently Asked Questions & Quantitative Reference

What is a SIP?
A systematic investment plan (SIP) invests a fixed amount at regular intervals, usually monthly, in a mutual fund or similar investment. Each payment buys units at that day's price, so more units are bought when prices are lower. The term is used mainly in India; elsewhere the same approach is called regular investing or dollar-cost averaging.
How does a Step-Up SIP compare with a fixed SIP?
A Step-Up SIP increases contributions by a chosen percentage over time, which can match a rising income but requires committing more money later. The calculator above shows how that contribution schedule changes projected wealth compared with a fixed contribution.
Is SIP better than lumpsum investing during market highs?
A SIP spreads purchases over time, so later contributions may buy more units if prices fall; a lump sum puts more capital at market risk sooner and also participates sooner if prices rise. Run the comparison above to see the modeled gap for your inputs.
What expected CAGR is realistic for equity mutual fund planning?
Historical data over 15–20 year rolling periods across broad market indices (such as S&P 500 or Nifty 50) shows annualized compound returns of approximately 10% to 13% before taxes.
Regulatory & Investment Disclaimer

Educational & Informational Purposes Only: This SIP Calculator and wealth-building guides are provided strictly for educational modeling. CAGR assumptions are hypothetical and do not guarantee future returns. Mutual funds and equities are subject to market risks.

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