Compound Interest Calculator Tool

Investment Details

Initial Investment Amount ($) The amount you initially invest or deposit

Additional Contribution ($) The amount you'll add on a regular basis

Contribution Frequency How often you'll make additional contributions Monthly Quarterly Annually

Annual Interest Rate (%) The annual rate at which your investment grows

Compounding Frequency How often the interest is calculated and added to your principal Daily Monthly Quarterly Semi-Annually Annually

Investment Time (Years) How long you plan to keep your money invested

Expected Inflation Rate (%) The rate at which the purchasing power of money decreases over time

Results

Enter your investment details and press calculate to see results.

Short User Guide:

What is Compound Interest?

Compound interest is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods. Think of it as "interest on interest" – one of the most powerful ways to grow your money over time.

How We Calculate

Our calculator uses the standard compound interest formula:

A = P(1 + r/n)^(nt) + PMT × (((1 + r/n)^(nt) - 1) / (r/n))

Where:

• A = Final amount
• P = Principal (initial investment)
• r = Annual interest rate (decimal)
• n = Number of compounding periods per year
• t = Time in years
• PMT = Regular contribution amount

For inflation-adjusted values, we calculate the future purchasing power using:

Real Value = Future Value / (1 + inflation rate)^t

Tips for Better Results

• Starting earlier can significantly increase your returns due to the power of compounding.
• Regular contributions, even small ones, can drastically improve your investment growth.
• Consider the effects of inflation when planning long-term investments.
• Higher compounding frequency generally results in better returns (daily > monthly > annually).

Feature	Details
Price	Free
Rendering	Client-Side Rendering
Language	JavaScript
Paywall	No

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About This Tool

How It Works?