Compound Growth Calculator — Formel
## Compound Growth
### Formula
**Final = Initial × (1 + r)^n**
where r is the growth rate per period and n is the number of periods.
### Rule of 72
To estimate doubling time: **Periods ≈ 72 / rate(%)**
At 6% growth, doubling takes approximately 72/6 = 12 periods.
### Formula
**Final = Initial × (1 + r)^n**
where r is the growth rate per period and n is the number of periods.
### Rule of 72
To estimate doubling time: **Periods ≈ 72 / rate(%)**
At 6% growth, doubling takes approximately 72/6 = 12 periods.
Lösungsbeispiel
1000 growing at 5% per year for 10 years.
- Final = 1000 × (1.05)^10
- = 1000 × 1.6289
- = 1628.89
- Total gain = 628.89
- Doubling time ≈ 72/5 = 14.4 years