How to Use This Savings Calculator
This calculator has two modes — switch between them using the tabs above the calculator:
- Balance Growth — enter your initial deposit, monthly contribution, interest rate, and time period to see your projected balance.
- Savings Goal — enter a target amount and the calculator tells you the required monthly deposit to reach it in your chosen timeframe.
The Inflation Adjustment toggle shows your future balance in today's purchasing power, assuming ~3% average annual inflation. This is especially useful for long-term goals like a home down payment or retirement planning, where inflation meaningfully erodes the real value of money.
Where to Earn the Best Savings Rates (2026)
Where you keep your savings dramatically impacts how fast it grows. Here's a comparison of typical rates:
| Account Type | Typical APY | Best For |
|---|
| Traditional bank savings | 0.01%–0.10% | Emergency access — not growth |
| Credit union savings | 0.50%–2.00% | Better than banks, still low |
| High-yield savings (HYSA) | 4.00%–5.25% | Emergency fund + short-term goals |
| Money market account | 4.00%–5.00% | Larger balances, check access |
| 1-year CD | 4.50%–5.50% | Known future date, locked rate |
| S&P 500 index fund (historical avg.) | ~10% nominal / ~7% real | Long-term (5+ years), accepts volatility |
Rates as of 2026. HYSA and CD rates change with Federal Reserve policy. Always compare current rates before opening an account.
The 50/30/20 Rule and Savings
A popular budgeting guideline suggests allocating 50% of after-tax income to needs, 30% to wants, and 20% to savings and debt repayment. If you earn $5,000/month after tax, that's $1,000/month toward savings. Enter that into the Monthly Deposit field above to see how quickly it compounds at current HYSA rates.
Emergency Fund First
Before investing, most financial advisors recommend building a 3–6 month emergency fund in a liquid, high-yield savings account. This is the foundation everything else is built on — it prevents you from taking on high-interest debt when unexpected expenses arise. Use the Savings Goal mode to calculate how long it'll take to build your emergency fund at your current contribution rate.
Frequently Asked Questions
How often should I add to my savings?
The most effective approach is automating savings on payday — set up an automatic transfer to your savings account the same day you receive your paycheck, before you have a chance to spend it. This "pay yourself first" strategy consistently outperforms the "save what's left" approach. Even small, consistent contributions add up dramatically over time due to compound interest.
Is a high-yield savings account safe?
Yes — HYSA accounts at FDIC-insured banks are protected up to $250,000 per depositor, per bank. Credit union equivalents are insured by NCUA to the same limit. Online banks (like Marcus, Ally, Marcus, SoFi) typically offer the highest HYSA rates because they have lower overhead than traditional brick-and-mortar banks. Always verify FDIC or NCUA insurance before opening an account.
What's the difference between APY and APR?
APY (Annual Percentage Yield) includes the effect of compounding and represents what you actually earn in a year. APR (Annual Percentage Rate) is the simple rate before compounding. Banks advertise APY for savings accounts because it's the higher number — and it's what you should use when comparing accounts. This calculator uses APY throughout.
How does inflation affect my savings?
Inflation erodes purchasing power over time. If your savings account earns 4.5% APY and inflation is 3%, your real return is approximately 1.5%. Toggle "Real (inflation-adj.)" above to see your projected balance in today's dollars. For very long time horizons, the difference can be substantial — a nominal $100,000 in 20 years might only have the purchasing power of ~$55,000 in today's money at 3% inflation.
Should I save or pay off debt first?
It depends on the interest rates involved. A common rule:
if debt interest rate > savings rate, pay off debt first. Credit card debt at 20%+ APR should almost always be paid before saving at 4–5% APY. However, most advisors recommend maintaining a small emergency fund (1 month of expenses) even while paying off high-interest debt, to avoid taking on new debt when unexpected costs arise. See our
Credit Card Payoff Calculator.