This doubling rate calculator (rule of 72) reference table shows the required growth rate for a range of years to double values. Every figure is computed with the same engine that powers our Doubling Rate Calculator (Rule of 72), so the numbers are exact.
| Years to double | Required growth rate |
|---|---|
| 2 | 36.00% |
| 4 | 18.00% |
| 6 | 12.00% |
| 8 | 9.00% |
| 12 | 6.00% |
| 16 | 4.50% |
| 24 | 3.00% |
| 40 | 1.80% |
| 56 | 1.29% |
| 80 | 0.90% |
How to use this table
Find the row closest to your years to double and read across to the required growth rate. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Doubling Rate Calculator (Rule of 72) for a precise answer.
Need a value that is not in the table? — the Doubling Rate Calculator (Rule of 72) does it instantly, for free, with the formula and a worked example built in.
Related calculators
Continue exploring finance calculators with these tools: SIP Calculator, EMI Calculator, CAGR Calculator, FD Calculator, Effective Annual Rate (EAR) Calculator.