Compound Interest Calculator
Calculate compound interest for investments and savings. Plan your financial future with accurate compound interest calculations.
Compound Interest Calculator
Calculate compound interest for investments and savings. Plan your financial future with accurate compound interest calculations.
📊 Inputs
¥
%
years
¥
Optional regular monthly contribution
Future Value
￥2,009,661
Total Contributions
￥1,000,000
Total Interest
￥1,009,661
📈 Breakdown
Initial Amount:
￥1,000,000
￥1,000,000
Future Value from Principal:
￥2,009,661
￥2,009,661
Total Monthly Contributions:
￥0
￥0
Future Value from Contributions:
￥0
￥0
Interest Growth: 101.0%
📅 Year-by-Year Breakdown
| Year | Total Value | Contributed | Interest |
|---|---|---|---|
| 1 | ￥1,072,290 | ￥1,000,000 | ￥72,290 |
| 2 | ￥1,149,806 | ￥1,000,000 | ￥149,806 |
| 3 | ￥1,232,926 | ￥1,000,000 | ￥232,926 |
| 4 | ￥1,322,054 | ￥1,000,000 | ￥322,054 |
| 5 | ￥1,417,625 | ￥1,000,000 | ￥417,625 |
| 6 | ￥1,520,106 | ￥1,000,000 | ￥520,106 |
| 7 | ￥1,629,994 | ￥1,000,000 | ￥629,994 |
| 8 | ￥1,747,826 | ￥1,000,000 | ￥747,826 |
| 9 | ￥1,874,177 | ￥1,000,000 | ￥874,177 |
| 10 | ￥2,009,661 | ￥1,000,000 | ￥1,009,661 |
💡 How to Use
- Enter your initial investment amount
- Set the expected annual interest rate
- Choose how often interest compounds
- Add optional monthly contributions for better growth
🧮 Formula
Compound Interest:
Variables:
A = Future value of investment
P = Principal amount (initial investment)
r = Annual interest rate (decimal)
n = Number of times interest compounds per year
t = Time the money is invested (years)
A = P(1 + r/n)^(nt)Variables:
A = Future value of investment
P = Principal amount (initial investment)
r = Annual interest rate (decimal)
n = Number of times interest compounds per year
t = Time the money is invested (years)