How much should I save each month?

A common guideline is the 50/30/20 rule: allocate 50% of after-tax income to needs, 30% to wants, and 20% to savings and debt repayment. However, the right amount depends on your income, expenses, financial goals, and timeline. Even small, consistent contributions add up significantly over time thanks to compound interest.

What is the difference between a savings account and a CD?

A savings account offers flexibility to deposit and withdraw money at any time, but typically pays lower interest rates. A certificate of deposit (CD) locks your money for a fixed term (e.g., 6 months, 1 year, 5 years) and usually pays a higher interest rate in exchange for that commitment. Early withdrawal from a CD typically incurs a penalty.

How does compound interest help my savings grow?

Compound interest means you earn interest not only on your original deposits but also on the interest that has already been added to your balance. Over time, this creates a snowball effect where your money grows faster and faster. The longer you save, the more powerful this effect becomes.

Should I save or invest my money?

It depends on your goals and timeline. Savings accounts are best for short-term goals (emergency fund, upcoming purchases) because they are safe and liquid. Investing is better for long-term goals (retirement, wealth building) because it offers higher potential returns, though with more risk. Most financial advisors recommend having 3-6 months of expenses in savings before investing.

Savings Calculator

Initial Deposit ($)

Monthly Contribution ($)

Annual Interest Rate (%)

Number of Years

Final Balance

Total Contributed

Interest Earned

How the Savings Calculator Works

This savings calculator helps you project how your money will grow over time when you combine an initial deposit with regular monthly contributions and compound interest. It uses monthly compounding to calculate the future value of your savings, giving you a clear picture of how consistent saving habits can build substantial wealth over the years.

The calculation works in two parts. First, it computes the future value of your initial deposit using the compound interest formula: FV = P(1 + r/12)^12t. Then it adds the future value of your monthly contributions as a growing annuity: FV = M × [((1 + r/12)^12t − 1) / (r/12)]. Together, these give you the total balance at the end of your savings period.

The stacked area chart below the results visually breaks down your final balance into two components: the total amount you contributed out of pocket and the interest earned on top. This makes it easy to see how much of your wealth comes from your own deposits versus the returns generated by compound interest. Even modest monthly contributions can grow into significant sums over 10, 20, or 30 years. The key is starting early and staying consistent. Use this calculator to set realistic savings targets for an emergency fund, a down payment, education expenses, or any other financial goal.

Formula

FV = P(1 + r/12)^12t + M × [((1 + r/12)^12t − 1) / (r/12)]

Where:

FV = future value of savings
P = initial deposit
M = monthly contribution
r = annual interest rate (as a decimal)
t = number of years

Example Calculation

Scenario: $5,000 initial deposit, $200/month contributions, 4.5% APY, 10 years

Step 1: Monthly rate = 4.5% ÷ 12 = 0.00375, periods = 120
Step 2: Initial deposit growth = $5,000 × (1.00375)¹²⁰ = $7,832
Step 3: Contribution growth = $200 × [((1.00375)¹²⁰ − 1) / 0.00375] = $30,089
Result: Total savings = $37,921 | Total deposited = $29,000 | Interest earned = $8,921

Disclaimer: This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Always consult a qualified professional for decisions specific to your situation.

Savings Calculator

How the Savings Calculator Works

Formula

Example Calculation

Frequently Asked Questions

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