Compound Interest Calculator
See how your money grows over time
$
$
years
7.0%
Projected Balance
$300,851
After Taxes: $275,223
In Today's Dollars: $152,384
Crossed $100K!
Total Contributions
$130,000
Total Interest Earned
$170,851
1.31x Interest earned per $1 contributed
Taxes Paid
$25,628
In Today's Dollars
$152,384
Your projected balance is the total you'd accumulate if you invest consistently at this rate.
Growth Over Time
Notice how the growth curve gets steeper over time — that's compounding in action.
| Year | Opening Balance | Contributions | Interest Earned | Closing Balance |
|---|---|---|---|---|
| 1 | $10,000 | $6,000 | $919.19 | $16,919 |
| 2 | $16,919 | $6,000 | $1,419 | $24,339 |
| 3 | $24,339 | $6,000 | $1,956 | $32,294 |
| 4 | $32,294 | $6,000 | $2,531 | $40,825 |
| 5 | $40,825 | $6,000 | $3,148 | $49,973 |
Look at how the interest earned each year grows — by the end, it may exceed your annual contributions.
"In today's dollars" shows what your future money would buy at today's prices.
Did You Know?
At 7.0%, your money doubles approximately every 10 years (Rule of 72).