# Online Compound Interest Calculator

## Directions

This calculator will solve for almost any variable of the compound interest formula.

So, fill in all of the variables except for the 1 that you want to solve

This calc will solve for:
A (final amount), P (principal), r (interest rate) or T (how many years to compound)

Solving for A
$A = P \cdot e^{r\cdot t}$