The doubling time equation calculates the number of periods it takes to double the value of an investment at a given discount rate.

# Tag: TVM formula

## Lump Sum Discount Rate Formula

## Future Value Annuity Formula

## Future Value of a Lump Sum Formula

## Present Value of Annuity Formula

## Present Value of a Lump Sum Formula

## Present Value of a Perpetuity Formula

## Present Value of a Growing Annuity Due Formula

## Lump Sum Formula

The time value of money concept in financial management is used to compare lump sum cash flows which are received or paid at different times.

The lump sum present and future value formulas can be used to calculate the effect of time and compounding interest rates on the value of the lump sums. They are best looked at by way of example.

## Annuity Due Formulas

An annuity due is a series of annual payments made at the beginning of each year for a fixed number of years.

Annuity due formulas are use to calculate annuity due values. The formula to use will depend on which components of the annuity due are already known.

The listing below summarizes the various formulas to use for annuity due calculations.

## Annuity Formulas

An annuity is a series of annual payments made at the end of each year for a fixed number of years. Annuities with payments at the end of each year are sometimes referred to as regular annuities.

Annuity formulas are use to calculate annuity values. The formula to use will depend on which components of the annuity are already known.