Savings Goal Calculator
Find out how long it will take to reach your savings goal.
How a Savings Goal Calculator Works
A savings goal calculator answers one of two questions. Forward mode (this calculator's default): given a goal amount, a starting balance, a fixed monthly contribution, and an interest rate, how long until you reach the goal? Reverse mode: given a goal and a deadline, how much do you need to save each month? Both directions use the same future-value-of-annuity formula, just solved for different variables.
The US Securities and Exchange Commission's educational site Investor.gov structures the same calculation as a numbered five-step flow: (1) set the savings goal, (2) enter your starting amount, (3) choose the time horizon, (4) set the interest rate (APY), and (5) pick a compound frequency. Following those five steps is a great mental model even if you use a single-screen calculator like this one.
Behind the numbers there's a behavioral insight: the required monthly contribution expressed as a percentage of your take-home pay is your implied savings rate, and the 50/30/20 rule says that rate should be at least 20%. The Federal Reserve's PSAVERT series shows the actual US personal savings rate has averaged closer to 5% in 2024–2025 — four times below the healthy benchmark.
The Formulas
FV— Future Value (your savings goal)PV— Present Value (starting savings)PMT— monthly contributionr— periodic (monthly) interest rate = APY ÷ 12n— number of months
- Reverse-mode solve: how much to save monthly given goal, starting amount, rate, and months
- Zero-rate edge case: if
r = 0, usePMT = (FV − PV) / n
Worked Example — Maria's Wedding
Common Savings-Goal Presets
Typical monthly contribution required for common goals, assuming $0 starting balance and 4.5% APY (a realistic HYSA rate as of 2026):
| Goal | Amount | Horizon | Monthly | Notes |
|---|---|---|---|---|
| Starter emergency fund | $1,000 | 6 months | ~$165 | Baby step 1 (Ramsey) |
| Full emergency fund | $20,000 | 24 months | ~$800 | 3–6 months expenses |
| Vacation | $5,000 | 12 months | ~$410 | Cash, no credit card debt |
| Wedding | $30,000 | 18 months | ~$1,600 | Median US wedding ~$29K (2024) |
| Car (used) | $15,000 | 24 months | ~$600 | Pay cash, skip auto loan |
| House down payment | $60,000 | 5 years | ~$900 | 20% down on $300K home |
| New baby fund | $15,000 | 10 months | ~$1,490 | Hospital + gear + leave buffer |
Savings Rules of Thumb
Senator Elizabeth Warren's 2005 rule: 50% needs, 30% wants, 20% savings and debt payoff. Treat 20% as the floor, not the ceiling. The US average personal savings rate (Fed PSAVERT) runs around 4–5%, so 20% is a significant commitment — but it's what moves savings goals from "someday" to "this decade".
Set up an automatic transfer to your HYSA on payday, before you see the money in checking. Behavioral research (Thaler, Benartzi's "Save More Tomorrow") consistently shows automation is the single most effective savings intervention.
FDIC National Rates show the average US savings account pays roughly 0.40% APY; top online HYSAs pay 4–5%. On a $20,000 emergency fund, that's an extra $800–900 per year at zero risk. Never leave medium-term savings in a checking account.
How to Use This Calculator (5 Steps)
- Step 1 — Set your savings goal. What are you saving for? Down payment, wedding, vacation, emergency fund. Pick a specific dollar amount.
- Step 2 — Enter your current savings. How much do you already have set aside for this goal? Zero is fine if you're starting today.
- Step 3 — Set a monthly contribution. How much you can realistically save each month. Try a few values — this is the biggest lever.
- Step 4 — Enter the interest rate (APY). For a high-yield savings account, use ~4–5% (2026). For a conservative index fund, ~5–7% real.
- Step 5 — Read the results. Time to goal, total contributed, and interest earned. Compare different monthly contribution amounts to see the impact.
Methodology & Assumptions
- Uses monthly compounding: each month, the balance grows by APY/12 and a new contribution is added at period end.
- Future-value-of-annuity formula: FV = PV × (1+r)^n + PMT × ((1+r)^n − 1) / r.
- Assumes a constant interest rate and constant monthly contribution — adjust your inputs if either will change.
- Does not model taxes. For taxable accounts, subtract your marginal tax rate from the APY for a more realistic projection.
- Current US personal savings rate benchmark is approximately 5% (Federal Reserve PSAVERT, 2024–2025); healthy is 15–20%.
- Current HYSA APY benchmark is approximately 4–5% (FDIC National Rates, 2026).
- All math runs locally in your browser; no data leaves your device.
Glossary
- Principal
- The starting amount you put into a savings or investment account, before any interest is added.
- APR (Annual Percentage Rate)
- Stated yearly interest rate without compounding effects. Used for loan quotes.
- APY (Annual Percentage Yield)
- Effective yearly rate after compounding. Always higher than the equivalent APR. Used for savings quotes; banks are required to disclose APY on savings accounts.
- Compound frequency
- How often interest is added to the balance (daily, monthly, quarterly, annually). More frequent compounding produces slightly higher APY.
- Future Value (FV)
- What a current amount (plus ongoing contributions) will be worth at a future date at a given interest rate.
- Present Value (PV)
- What a future amount is worth in today's dollars at a given discount rate.
- Annuity
- A series of equal periodic payments. The future-value-of-annuity formula is what drives savings goal calculators.
- HYSA (High-Yield Savings Account)
- Savings account paying significantly above the bank average. Typically FDIC-insured online banks; APYs of 4–5% are common as of 2026.
- Savings rate
- Percentage of take-home income saved each month. US average is ~5%; healthy is 15–20%; FIRE is 40–60%+.
- 50/30/20 rule
- Popular budget allocation: 50% needs, 30% wants, 20% savings and debt payoff. Senator Elizabeth Warren, 2005.
- PMT (Payment)
- The recurring periodic contribution amount in the future-value-of-annuity formula. Solved-for in reverse mode.
- Sinking fund
- A dedicated savings account for a specific upcoming expense (taxes, insurance, car repair, holiday gifts). Prevents credit-card shock.
Frequently Asked Questions
Use the PMT formula: PMT = (FV − PV × (1+r)^n) × r / ((1+r)^n − 1), where FV is goal, PV is current savings, r is monthly rate, n is months. $50,000 in 5 years starting with $5,000 at 4.5% APY → about $640/month.
From $0 at 4% APY HYSA: $300/month → about 31 months. $500/month → about 19 months. Contribution amount matters far more than interest rate for short-horizon goals.
For $60,000 (20% of $300,000) in 5 years from $0 at 4.5% APY: about $900/month. In 3 years: about $1,550/month. FHA accepts 3.5% down; conventional accepts 3%, but PMI applies until 20% equity.
The 50/30/20 rule says 20% (savings and debt payoff). US personal savings rate (Fed PSAVERT, 2024–2025) averages ~5%, so 20% is well above average. FIRE planners target 40–60%. Minimum retirement guidance is ~15% of gross income including employer match.
50% of take-home to needs, 30% to wants, 20% to savings and debt payoff. Senator Elizabeth Warren, "All Your Worth" (2005). Treat 20% as the minimum — retirement alone typically needs 15% of gross income.
1–3 year goals: HYSA (4–5% APY top rates, 2026). 3–5 year goals: Treasury money market fund or short CD ladder. 5+ year goals: conservative index allocation (adds risk). Never leave savings goals in a checking account.
APR is the stated rate without compounding; APY includes compounding. A 5% APR compounded monthly equals ~5.12% APY. Banks must advertise savings as APY and loans as APR. Compare HYSAs on APY.
Short goals (under 3 years): modest effect (~5–10% of total). Long goals (10+ years): compounding can contribute 30–50% of the final balance. The longer the horizon, the more compounding does the work for you.
Build a $1,000 starter first (Ramsey baby step 1), then scale to 3–6 months of essential expenses in a HYSA. For $3,500/month essentials: 3-month fund = $10,500, 6-month = $21,000. See our Emergency Fund Calculator for a breakdown.
Yes — 20% is considered healthy and roughly 4× the current US average (Fed PSAVERT ~5%). At 20%, typical earners retire in about 37 years via the Mr. Money Mustache savings-rate math. For FIRE, 40–60% is common. Moving from 5% to 20% is life-changing even if it doesn't reach FIRE.