How to Use Savings Goal Calculator
The Savings Goal Calculator helps you plan toward a specific target like a down payment or trip. Enter your goal, current savings, interest rate, and choose which value to solve for. The Savings Goal Calculator then returns either the required monthly deposit or the months needed.
- Enter the goal and current savings.
- Enter the interest rate.
- Choose mode - solve for deposit, or solve for timeline.
- Read the result.
Formula & Theory - Savings Goal Calculator
The Savings Goal Calculator uses these formulas:
i = APR / 12
FV_current = PV · (1 + i)^n
Required = (Goal - FV_current) · i / ((1 + i)^n - 1)
Bal_(m+1) = Bal_m · (1 + i) + C (iterated until Bal ≥ Goal)| Symbol | Meaning |
|---|---|
| PV | Current savings |
| C | Monthly deposit |
| i | Monthly rate |
| n | Months |
Assumptions and Limits
The Savings Goal Calculator assumes a constant rate and uniform monthly deposits. Inflation, taxes, and missed deposits are not modeled.
Use Cases for Savings Goal Calculator
- Down payment plans - target a property down payment.
- Travel and weddings - plan large discretionary expenses.
- Emergency fund - hit a multi-month spending buffer.
- Education - build a 529 or RESP toward a target tuition figure.