How Are Calculators Programmed

Reviewed by: David Chen, CFA
David Chen is a Certified Financial Analyst with over 10 years of experience in finance and insurance.

Use this calculator to calculate a missing variable in the four-function formula. Enter three variables, and the fourth will be calculated.

How Are Calculators Programmed?

F (Future Value): P (Present Value): V (Interest Rate): Q (Time Period):

The main formula is:

F = P * (1 + V)^Q

Formula Source: Investopedia

What is Future Value (F)? It is the value of an investment at a future date, taking into account interest rate and time.

How can I calculate Present Value (P)? Present value is calculated by rearranging the formula: P = F / (1 + V)^Q.