Rule Calculator — calculators that show their working

Doubling Time

Growth rate per period%Starting amountUSD

Periods to double

10.24

Formula: Luca Pacioli, Summa de Arithmetica (1494) — the earliest known statement of the rule, SEC Investor.gov — compound interest, US Bureau of Labor Statistics — CPI inflation, for applying doubling time to prices

Doubling Time by Rule Calculator