Rule of 72 Calculator
Years for money to double, or the rate needed.
Inputs
- Find
- Rate (%) or years
How it is calculated
Years ≈ 72 ÷ rate; the exact answer is ln 2 ÷ ln(1 + r).
Years for money to double, or the rate needed.
Years ≈ 72 ÷ rate; the exact answer is ln 2 ÷ ln(1 + r).