$1,000 Invested at 5% for 3 Years
$1,161.47
Future Value (compounded monthly)
$1,000 invested at 5% annual compound interest (compounded monthly) for 3 years will grow to $1,161.47. You earn $161.47 in interest. At 5%, your money doubles in approximately 14.4 years (Rule of 72).
Year-by-Year Growth
| Year | Balance | Interest |
|---|---|---|
| 1 | $1,051.16 | $51.16 |
| 2 | $1,104.94 | $104.94 |
| 3 | $1,161.47 | $161.47 |
Quick Reference Table
| Principal | Rate | Years | Future Value |
|---|---|---|---|
| $1,000 | 3% | 3 yrs | $1,094.05 |
| $1,000 | 4% | 3 yrs | $1,127.27 |
| $1,000 | 6% | 3 yrs | $1,196.68 |
| $1,000 | 7% | 3 yrs | $1,232.93 |
| $1,000 | 5% | 1 yrs | $1,051.16 |
| $1,000 | 5% | 2 yrs | $1,104.94 |
| $1,000 | 5% | 5 yrs | $1,283.36 |
| $1,000 | 5% | 7 yrs | $1,418.04 |
| $1,000 | 5% | 10 yrs | $1,647.01 |
| $1,000 | 5% | 15 yrs | $2,113.70 |
Formula Used
A = P(1 + r/n)nt
- P = $1,000
- r = 5% = 0.05
- n = 12 (monthly)
- t = 3 years
- A = $1,161.47
Frequently Asked Questions
How much will $1,000 grow at 5% compound interest in 3 years?
$1,000 grows to $1,161.47. Interest earned: $161.47.
How long to double $1,000 at 5%?
Using the Rule of 72: 72 ÷ 5 ≈ 14.4 years.
What is the compound interest formula?
A = P(1 + r/n)^(nt). P=$1,000, r=5%=0.05, n=12, t=3.