Hosted on MSN

Rule of 72 explained: estimate how fast money grows

The Rule of 72 is a simple yet powerful tool for estimating how long it will take for an investment to double at a given annual compound interest rate. By dividing 72 by the interest rate, investors ...
Nasdaq

Rule of 70 vs. Rule of 72: What's the Difference?

The Rule of 70 is a mathematical formula used to estimate the time it takes for an investment or any quantity to double, given a fixed annual growth rate. This rule is used by investors and financial ...