Investing calculator
Rule of 72 Calculator
How long it takes money to double at a given rate.
Schedule
About this calculator
Divide 72 by the annual percentage rate to estimate the years to double. It is most accurate between 6% and 10%.
Results are estimates for planning and education, assume constant rates, and ignore taxes and fees unless stated. Not financial advice.
More calculators
Compound Interest CalculatorDollar-Cost Averaging (DCA) Calculator401(k) Retirement CalculatorMortgage CalculatorLoan & Amortization CalculatorCAGR CalculatorDividend Reinvestment (DRIP) CalculatorInflation CalculatorFIRE Number CalculatorPosition Size CalculatorSavings Goal CalculatorFederal Income Tax Calculator 2026Capital Gains Tax Calculator 2026Roth IRA CalculatorRoth vs Traditional CalculatorStock Average Cost CalculatorOptions Profit Calculator