KLOORARule of 72 Calculator
Estimate how many years it takes to double your money at a given interest rate.
Quick answer: Rule of 72 Calculator: Estimate how many years it takes to double your money at a given interest rate. Everything runs in your browser, so nothing you enter is uploaded or stored.
How to use Rule of 72 Calculator
- Enter your values in the fields.
- The results update instantly as you type.
- Note or copy the numbers you need.
Features
- Instant results
- Free, no signup
- Runs in your browser, nothing is uploaded
- Works on phone and desktop
Frequently asked questions
What is the rule of 72?
Divide 72 by the yearly return to estimate the years needed to double. At 8 percent it takes about 9 years.
How accurate is it?
It is a good estimate for rates between about 6 and 10 percent. The tool also shows the exact figure.
Is the Rule of 72 Calculator free?
Yes. It is free, needs no signup and works on any device.