$3,000 Invested at 9% for 3 Years
$3,925.94
Future Value (compounded monthly)
$3,000 invested at 9% annual compound interest (compounded monthly) for 3 years will grow to $3,925.94. You earn $925.94 in interest. At 9%, your money doubles in approximately 8 years (Rule of 72).
Year-by-Year Growth
| Year | Balance | Interest |
|---|---|---|
| 1 | $3,281.42 | $281.42 |
| 2 | $3,589.24 | $589.24 |
| 3 | $3,925.94 | $925.94 |
Quick Reference Table
| Principal | Rate | Years | Future Value |
|---|---|---|---|
| $3,000 | 7% | 3 yrs | $3,698.78 |
| $3,000 | 8% | 3 yrs | $3,810.71 |
| $3,000 | 10% | 3 yrs | $4,044.55 |
| $3,000 | 11% | 3 yrs | $4,166.64 |
| $3,000 | 9% | 1 yrs | $3,281.42 |
| $3,000 | 9% | 2 yrs | $3,589.24 |
| $3,000 | 9% | 5 yrs | $4,697.04 |
| $3,000 | 9% | 7 yrs | $5,619.61 |
| $3,000 | 9% | 10 yrs | $7,354.07 |
| $3,000 | 9% | 15 yrs | $11,514.13 |
Formula Used
A = P(1 + r/n)nt
- P = $3,000
- r = 9% = 0.09
- n = 12 (monthly)
- t = 3 years
- A = $3,925.94
Frequently Asked Questions
How much will $3,000 grow at 9% compound interest in 3 years?
$3,000 grows to $3,925.94. Interest earned: $925.94.
How long to double $3,000 at 9%?
Using the Rule of 72: 72 ÷ 9 ≈ 8 years.
What is the compound interest formula?
A = P(1 + r/n)^(nt). P=$3,000, r=9%=0.09, n=12, t=3.