What is the Rule of 72 Calculator?
The Rule of 72 is a quick mental shortcut: divide 72 by the annual return to estimate the years to double your money. At 8% per year, money doubles in about 72 ÷ 8 = 9 years. It also works for inflation – at 12% inflation, prices double in about 6 years.
How to use the Rule of 72 Calculator
- Enter the yearly interest/return rate – or the years.
- See the doubling time (or rate needed).
- Compare the rule’s estimate with the exact figure.
Also useful
Rule of 114 = time to triple; Rule of 144 = time to quadruple.
This Rule of 72 Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech