Savings Goal
Calculate how much you need to save monthly to reach your financial goal with compound interest.
How It Works
This calculator uses the future value of annuity formula with compound interest to determine your required monthly savings.
Where FV is your target goal, PV is current savings, r is the monthly interest rate (APY / 12), and n is the number of months.
Power of Compound Interest
Compound interest earns returns on both your principal and accumulated interest. The earlier you start, the more dramatic the growth.
- High-yield savings accounts (HYSA) currently offer 4-5% APY
- CDs may offer slightly higher rates for locked terms
- The Rule of 72: divide 72 by your rate to estimate doubling time
Savings Tips
- Set up automatic transfers on payday – pay yourself first
- Keep 3-6 months expenses in an emergency fund separately
- Consider tax-advantaged accounts (401k, IRA, HSA) for long-term goals
- Review and increase contributions when you get a raise
Important Notes
- Interest rates on savings accounts fluctuate with Fed rates
- Inflation (currently ~3%) reduces real purchasing power
- Interest over $10 is taxable income (reported on 1099-INT)
- FDIC insures up to $250,000 per depositor per bank
Frequently Asked Questions
What formula does the savings goal calculator use?
PMT = (FV − PV × (1+r)^n) × r / ((1+r)^n − 1), where FV is your target amount, PV is current savings, r is the monthly rate (APY/12), and n is the number of months. This formula solves for the required monthly deposit. It is the future value of an ordinary annuity formula rearranged for payment.
How does a higher APY affect my required monthly savings?
A higher APY reduces the required monthly contribution because interest does more of the work. Saving toward a $50,000 goal from $5,000 over 5 years requires about $650/month at 0% APY, but only about $612/month at 4.5% APY — a difference of roughly $2,300 in total deposits over the period. High-yield savings accounts currently at 4–5% APY can meaningfully reduce what you need to set aside.
What is the difference between this savings goal calculator and a compound interest calculator?
This calculator solves for the required monthly contribution given a fixed target, timeframe, and APY. A compound interest calculator instead takes a known contribution and projects the final balance. They are inverses: one works backward from a goal, the other projects forward from contributions.
Does the calculator show both deposits and interest earned separately?
Yes — the results show Required Monthly Savings, Remaining to Save (target minus current savings), Total Deposits (sum of all monthly contributions), Interest Earned, and Daily Savings equivalent. A donut chart and growth-over-time chart visualize the split between your deposits and the interest contribution.
Can I use this for a short-term goal like a vacation fund or emergency fund?
Yes — the time frame accepts any number of months from 1 to 600. For a $5,000 vacation fund starting from zero in 12 months with 4% APY, the required monthly savings is about $409. For longer goals like a house down payment or college fund, the interest component becomes increasingly significant.