Investment Calculator

Developed by Hemant Parashar, B.Sc.

Calculate how your investment grows over time with compound interest and regular contributions.

Financial Disclaimer

Calculations are estimations provided for illustrative purposes only. They do not constitute formal lending rates or professional financial planning advice. Interest rates and loan terms vary based on lender underwriting criteria and credit profiles.

Investment Details

%
years

Results

Initial Investment
Total Contributions
Total Interest Earned
Future Value

Growth Over Time

YearBalanceContributionsInterest

How to Use the Investment Calculator

Tracks growth of investment portfolios with initial capital and recurring contributions. Follow these instructions to compute your results accurately:

  • Specify initial principal, expected growth rate, time span, and monthly contributions.
  • Double-check all inputs to prevent calculation errors.
  • Results are processed instantly in your browser via client-side scripts.

Mathematical Formulas & Calculation Principles

The underlying calculations rely on the following mathematical logic:

A = P(1 + r)^n + PMT * [((1+r)^n - 1)/r]

Frequently Asked Questions (FAQ)

Q: What is the Rule of 72?

A: The Rule of 72 is a quick way to estimate when your investment will double: divide 72 by your annual interest rate (e.g., 72 / 8% = 9 years).

This tool was developed and verified by Hemant Parashar, B.Sc. Graduate and part-time blogger, to provide free, high-accuracy mathematical resources for educational use. Complex parameters were verified by Hemant Parashar (Developer & Chief Editor).