Skip to main content
DigiCalcs

Πώς να υπολογίσετε το Rule of 72

Τι είναι το Rule of 72;

The Rule of 72 is a simple mental math shortcut to estimate how long it takes an investment to double, or what growth rate is needed to double in a given time. Divide 72 by the annual return rate to get years to double.

Οδηγός βήμα προς βήμα

  1. 1Years to double = 72 / Annual Interest Rate (%)
  2. 2Rate needed to double = 72 / Number of years
  3. 3Works best for rates between 6% and 10% (±1 year accuracy)
  4. 4For continuous compounding, use 69.3 instead of 72

Worked Examples

Εισαγωγή
8% annual return
Αποτέλεσμα
Doubles in ~9 years (72/8)
Actual: 9.01 years
Εισαγωγή
Want to double in 6 years
Αποτέλεσμα
Need ~12% return (72/6)
Actual rate: 12.25%

Είστε έτοιμοι να υπολογίσετε; Δοκιμάστε τον δωρεάν υπολογιστή Rule of 72

Δοκιμάστε το μόνοι σας →

Ρυθμίσεις