Enter the initial principal amount, annual interest rate, number of times that interest is compounded per year, and the time the money is invested for in years into the calculator to determine the final amount in a drip compound investment.

Drip Compound Formula

The following formula is used to calculate the final amount in a drip compound investment.

A = P * (1 + r/n)^{(nt)}

Variables:

  • A is the final amount of the investment ($)
  • P is the initial principal amount ($)
  • r is the annual interest rate (decimal)
  • n is the number of times that interest is compounded per year
  • t is the time the money is invested for in years

To calculate the final amount in a drip compound investment, add 1 to the annual interest rate divided by the number of times that interest is compounded per year. Raise this result to the power of the product of the number of times that interest is compounded per year and the time the money is invested for in years. Multiply this result by the initial principal amount.

What is a Drip Compound?

A Drip Compound is a type of investment strategy where the dividends or interest earned from an investment are automatically reinvested to purchase more shares or units, leading to the compounding of returns over time. This strategy, also known as a Dividend Reinvestment Plan (DRIP), allows investors to take advantage of the power of compounding, which can significantly increase the value of their investment over the long term.

How to Calculate Drip Compound?

The following steps outline how to calculate the Drip Compound using the given formula:


  1. First, determine the initial principal amount (P) ($).
  2. Next, determine the annual interest rate (r) (decimal).
  3. Next, determine the number of times that interest is compounded per year (n).
  4. Next, determine the time the money is invested for in years (t).
  5. Next, gather the formula from above = A = P * (1 + r/n)^(nt).
  6. Finally, calculate the Drip Compound.
  7. After inserting the variables and calculating the result, check your answer with a calculator.

Example Problem:

Use the following variables as an example problem to test your knowledge:

Initial principal amount (P) ($) = 500

Annual interest rate (r) (decimal) = 0.05

Number of times that interest is compounded per year (n) = 4

Time the money is invested for in years (t) = 3