Grow Your Wealth: Calculate Compound Interest with a Simple Excel Formula Grow Your Wealth: Calculate Compound Interest with a Simple Excel Formula See the magic of compounding in action with this powerful spreadsheet tool. Welcome! Compound interest is often called the "eighth wonder of the world" because of its power to grow wealth over time. While there are complex financial functions in Excel that can calculate it, you don't need them. You can use a single, straightforward mathematical formula to see exactly how your savings or investments can grow. Understanding this formula is a key step in taking control of your financial future. The Compound Interest Formula The formula for calculating the future value of an investment with compound interest is: A = P (1 + r/n)^(nt) Here’s what each variable means: ...