Savings Calculator
Project your financial future. Calculate how your money can grow over time through the power of compound interest and regular monthly contributions.
Quick Answer: How to calculate compound interest?
Compound interest is calculated using the formula: A = P(1 + r/n)^(nt), where "P" is your principal balance, "r" is the annual interest rate, "n" is the number of times interest is compounded per year, and "t" is the number of years. Because you earn interest on your previously earned interest, your savings grow exponentially over time. Use the calculator below to easily compute your future savings.
$6,000 per year
Advanced Settings
Frequent compounding (e.g., daily) yields slightly higher returns over time.
Total Savings Balance
$94,111
in 10 years.
$70,000
$24,111
Growth Projection Over Time
Year 1
Total: $16,651
Principal: $16,000
Interest: $651
Year 2
Total: $23,642
Principal: $22,000
Interest: $1,642
Year 3
Total: $30,991
Principal: $28,000
Interest: $2,991
Year 4
Total: $38,716
Principal: $34,000
Interest: $4,716
Year 5
Total: $46,837
Principal: $40,000
Interest: $6,837
Year 6
Total: $55,372
Principal: $46,000
Interest: $9,372
Year 7
Total: $64,345
Principal: $52,000
Interest: $12,345
Year 8
Total: $73,776
Principal: $58,000
Interest: $15,776
Year 9
Total: $83,690
Principal: $64,000
Interest: $19,690
Year 10
Total: $94,111
Principal: $70,000
Interest: $24,111
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The Power of Compound Interest
When you put money into a savings account, the bank pays you interest. Compound interest happens when the bank pays you interest not just on your initial deposit, but also on the interest you have already earned. Over long periods of time, this creates a snowball effect that can significantly increase your wealth.
Time is Your Best Friend
Because compound interest is an exponential curve, the most important variable is time. An individual who starts investing $200 a month at age 25 will have significantly more money at age 65 than someone who invests $400 a month starting at age 45, assuming the same interest rate.
The Rule of 72
The "Rule of 72" is a simple shortcut to estimate how long it will take for your money to double. Simply divide 72 by your expected annual interest rate. For example, if you are earning an 8% return, 72 / 8 = 9. Your money will roughly double every 9 years.
Types of Savings Vehicles
- High-Yield Savings Accounts (HYSA): These accounts offer significantly higher interest rates than traditional bank accounts while remaining risk-free (FDIC insured up to $250k). Rates often hover around 4-5% in favorable economic environments.
- Certificates of Deposit (CDs): CDs lock your money in for a fixed term (e.g., 1 year) in exchange for a guaranteed interest rate. If you withdraw early, you pay a penalty.
- Index Funds & ETFs: Investing in the stock market (like an S&P 500 index fund) carries risk and volatility, but historically averages a 7-10% annual return over long, multi-decade periods.
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Frequently Asked Questions
What is compound interest?
Compound interest is the interest you earn on both your original money (principal) and on the interest you keep accumulating. It allows your wealth to grow exponentially over time, famously referred to by Albert Einstein as the "eighth wonder of the world."
How do monthly contributions affect my savings?
Making regular monthly contributions accelerates your compound growth dramatically. Even a small monthly deposit, when subjected to compound interest over a long period (10-30 years), can result in a final balance that is significantly larger than your total principal deposited.
Should I compound daily, monthly, or annually?
The more frequently interest is compounded, the faster your money grows. Daily compounding yields slightly more than monthly compounding, which yields more than annual compounding. Most standard high-yield savings accounts compound interest daily but pay it out monthly.
How much should I save every month?
Financial experts often recommend the 50/30/20 rule: dedicate 50% of your income to needs, 30% to wants, and 20% to savings or paying off debt. Ultimately, the best amount to save is whatever you can comfortably afford to put away consistently.
Does this calculator account for inflation?
No, this savings calculator provides a nominal projection of your future balance (the actual dollar amount you will have in your account). It does not adjust for the future purchasing power of those dollars. You can use our dedicated Inflation Calculator to see how inflation affects purchasing power.