$100 Invested at 6% for 3 Years
$119.67
Future Value (compounded monthly)
$100 invested at 6% annual compound interest (compounded monthly) for 3 years will grow to $119.67. You earn $19.67 in interest. At 6%, your money doubles in approximately 12 years (Rule of 72).
Year-by-Year Growth
| Year | Balance | Interest |
|---|---|---|
| 1 | $106.17 | $6.17 |
| 2 | $112.72 | $12.72 |
| 3 | $119.67 | $19.67 |
Quick Reference Table
| Principal | Rate | Years | Future Value |
|---|---|---|---|
| $100 | 4% | 3 yrs | $112.73 |
| $100 | 5% | 3 yrs | $116.15 |
| $100 | 7% | 3 yrs | $123.29 |
| $100 | 8% | 3 yrs | $127.02 |
| $100 | 6% | 1 yrs | $106.17 |
| $100 | 6% | 2 yrs | $112.72 |
| $100 | 6% | 5 yrs | $134.89 |
| $100 | 6% | 7 yrs | $152.04 |
| $100 | 6% | 10 yrs | $181.94 |
| $100 | 6% | 15 yrs | $245.41 |
Formula Used
A = P(1 + r/n)nt
- P = $100
- r = 6% = 0.06
- n = 12 (monthly)
- t = 3 years
- A = $119.67
Frequently Asked Questions
How much will $100 grow at 6% compound interest in 3 years?
$100 grows to $119.67. Interest earned: $19.67.
How long to double $100 at 6%?
Using the Rule of 72: 72 ÷ 6 ≈ 12 years.
What is the compound interest formula?
A = P(1 + r/n)^(nt). P=$100, r=6%=0.06, n=12, t=3.