Monthly Investment Return Calculator



Calculating monthly investment returns is a crucial aspect of financial planning, helping individuals and investors make informed decisions about their investments. This article provides a comprehensive guide on creating a Monthly Investment Return Calculator using HTML and JavaScript. Additionally, it covers the formula for accurate calculations, examples, FAQs, and a conclusion.

How to Use

To utilize the Monthly Investment Return Calculator, input the required values in the designated fields and click the “Calculate” button. The result will display the monthly return on the investment, providing valuable insights into your financial strategy.


The formula for calculating monthly investment returns is as follows:

This formula takes into account the ending and beginning values of the investment, as well as any additional cash inflows during the period.


Suppose you start with an investment of $10,000, contribute an additional $2,000 during the month, and the ending value is $12,500. Applying the formula:

In this example, the monthly return on the investment is 45%.


Q: Can I use this calculator for any type of investment?
A: Yes, this calculator is versatile and applicable to various types of investments, including stocks, bonds, and mutual funds.

Q: Is the formula provided suitable for all investment scenarios?
A: The formula is designed for general use. However, specific investment strategies may require customized formulas.

Q: What does the calculated monthly return percentage signify?
A: The monthly return percentage indicates the growth or decline of your investment over a one-month period.


In conclusion, the Monthly Investment Return Calculator is a valuable tool for assessing the performance of your investments. By understanding the formula and following the examples provided, users can make informed decisions to optimize their financial portfolios.

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