Compound Savings Calculator
See how saving a small daily amount grows over time with compound interest.
Calculate the future value of saving $X per day.
Savings Growth Over Time
Compound savings shows how small daily deposits grow exponentially with compound interest.
Formula (future value of a series):
FV = PMT × [((1 + r)^n - 1) / r]
Where:
- PMT = monthly deposit (daily amount × 30.44)
- r = monthly interest rate (annual rate / 12)
- n = total months
The power of daily saving:
| Daily Amount | After 10 Years (7% return) | After 30 Years (7% return) |
|---|---|---|
| $1/day | $5,280 | $36,500 |
| $5/day | $26,400 | $182,500 |
| $10/day | $52,800 | $365,000 |
| $20/day | $105,600 | $730,000 |
Key insight: At 7% annual return, your money roughly doubles every 10 years. Starting 10 years earlier can mean having twice as much at retirement.