Report post
How do I calculate monthly compound interest?
Here's how to calculate monthly compound interest using our compound interest formula. Monthly compound interest means that our interest is compounded 12 times per year: Divide your annual interest rate (decimal) by 12 and then add one to it. Raise the resulting figure to the power of the number of years multiplied by 12.What is a compound interest formula?
The compound interest formula solves for the future value of your investment ( A ). The variables are: P – the principal (the amount of money you start with); r – the annual nominal interest rate before compounding; t – time, in years; and n – the number of compounding periods in each year (for example, 365 for daily, 12 for monthly, etc.).How do you calculate compound interest on a savings figure?
If you want to roughly calculate compound interest on a savings figure, without using a calculator, you can use a formula called the rule of 72. The rule of 72 helps you estimate the number of years it will take to double your money. The method is simple - just divide the number 72 by your annual interest rate.