Bank Savings Account APR Calculator

Understanding your bank savings account's Annual Percentage Rate (APR) is crucial for making informed financial decisions. This calculator helps you determine how much interest you'll earn on your savings account based on the APR, principal amount, and time period.

What is APR?

The Annual Percentage Rate (APR) is the yearly cost of borrowing or the yearly interest rate you earn on a savings account. It represents the actual cost of credit or the interest earned on your savings, expressed as a percentage.

APR is different from the Annual Percentage Yield (APY), which takes into account compounding interest. APR is typically used for loans and credit cards, while APY is more common for savings accounts.

Key Points About APR

APR is calculated on the original loan amount, not the remaining balance
It includes all fees and interest charges
APR is expressed as a percentage, usually per year
For savings accounts, APR represents the interest rate you earn

Note: When comparing savings accounts, always check both APR and APY. APY shows the actual return after compounding, which can be significantly higher than the APR.

How to Calculate APR

The basic formula for calculating APR is:

APR = (Total Interest Earned / Principal Amount) × 100

For example, if you earn $100 in interest on a $10,000 principal over one year, your APR would be 1%.

Step-by-Step Calculation

Determine the principal amount (the initial deposit)
Calculate the total interest earned over the period
Divide the total interest by the principal amount
Multiply by 100 to get the percentage

Example Calculation

Suppose you deposit $5,000 in a savings account with an APR of 2.5%. Here's how to calculate the interest earned in one year:

Interest = Principal × (APR / 100) × Time Interest = $5,000 × (2.5 / 100) × 1 Interest = $5,000 × 0.025 Interest = $125

So, you would earn $125 in interest over one year.

APR vs. APY

While both APR and APY measure interest rates, they are calculated differently:

Feature	APR	APY
Definition	Annual Percentage Rate	Annual Percentage Yield
Calculation	Simple interest calculation	Compounding interest calculation
Common Use	Loans and credit cards	Savings accounts
Example	If you borrow $100 at 5% APR, you pay $5 in interest	If you save $100 at 5% APY, you earn more than $5 after compounding

The key difference is that APY accounts for compounding, which means you earn interest on both your principal and previously earned interest. This can result in significantly higher returns over time.

How to Use This Calculator

Using our bank savings account APR calculator is simple:

Enter the principal amount (the initial deposit)
Input the APR (Annual Percentage Rate)
Select the time period (in years)
Click "Calculate" to see your results

The calculator will show you:

The total interest earned
The final amount in your account
A chart showing your balance growth over time

Tip: For more accurate results, use the APY when available, as it accounts for compounding interest.

Frequently Asked Questions

What is the difference between APR and APY?

APR is the simple interest rate, while APY is the effective annual rate that accounts for compounding interest. APY is always higher than APR for savings accounts.

How often is interest calculated on a savings account?

Most savings accounts calculate interest daily, meaning your balance grows slightly each day based on the daily interest rate.

Can I withdraw money from a savings account without penalty?

This depends on the specific account terms. Some savings accounts allow unlimited withdrawals, while others may have restrictions or penalties for frequent withdrawals.

How do I find the APR of my savings account?

You can find the APR in your account statement, on your bank's website, or by contacting customer service. It's typically listed as a percentage.