Compound growth calculator
See what a starting amount and a monthly addition would grow to at a rate you choose, compounded monthly.
The result
After 10 years, the balance would be $47,526.55.
That would be $34,000.00 put in and $13,526.55 of growth.
The balance year by year
| Year | Balance would be |
|---|---|
| 1 | $12,967.39 |
| 2 | $16,086.60 |
| 3 | $19,365.39 |
| 4 | $22,811.93 |
| 5 | $26,434.80 |
| 6 | $30,243.03 |
| 7 | $34,246.09 |
| 8 | $38,453.96 |
| 9 | $42,877.11 |
| 10 | $47,526.55 |
How it is worked out
B = P × (1 + r ÷ 12)12t + M × [(1 + r ÷ 12)12t − 1] ÷ (r ÷ 12)
- B
- the balance
- P
- the starting amount
- M
- the amount added each month
- r
- the yearly rate as a decimal (5% is 0.05)
- t
- the number of years
Growth compounds monthly, and each addition is made at the end of the month. Taxes and fees are left out.
Illustration, not a forecast. Not investment advice.