While you can find your break-even age on your own, it may be helpful to use an online Social Security calculator. These may account for inflation and other factors that could impact your benefit.

The formula for calculating simple interest in a savings account is Interest = P * R * T. Multiply the account balance by the interest rate by the time period.

To calculate your effective tax rate, you need two numbers: the total amount you paid in taxes and your taxable income for that year. You can find both numbers on your tax return.

Knowing how to calculate your portfolio's returns is essential to becoming a savvier investor. Learn the basic principles here to correctly calculate your investment portfolio returns.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

Gross monthly income is the wage an employee earns within a month before taxes or any other deductions. Here we walk through the definition and how to find gross monthly income in different cases ...

Learn how a trailing 12 months calculation can give you an accurate view of your business’s financial health.

Mortgage refinancing is when a homeowner takes out another loan to pay off—and replace—their original mortgage. A mortgage refinance calculator can help borrowers estimate their new monthly ...