How it works
We grow what you've already saved at your interest rate, then work out the level monthly deposit that closes the gap by your deadline.
Formula
PMT = (Goal − S(1+r)ⁿ) × r ÷ ((1+r)ⁿ − 1)
Example
To reach $20,000 in 3 years with $2,000 saved at 4% APY, save about $456 a month.
Assumptions & limitations
- A constant rate of return or inflation every year.
- Excludes fees and taxes unless entered.
- Contributions are made regularly and on time.
Frequently asked questions
How big should an emergency fund be?
A common guideline is 3–6 months of essential expenses.