Calculate Savings Account APY

Annual Percentage Yield (APY) is a crucial metric for evaluating savings accounts and investments. Unlike Annual Percentage Rate (APR), which only accounts for simple interest, APY includes the effect of compounding, giving a more accurate picture of your earnings. This guide explains how to calculate APY, the difference between APY and APR, and how to use our calculator to make informed financial decisions.

What is APY?

APY stands for Annual Percentage Yield. It represents the actual interest earned on a deposit account after accounting for compounding interest. Unlike APR (Annual Percentage Rate), which only calculates simple interest, APY provides a more accurate reflection of your earnings over time.

For example, if you deposit $1,000 into a savings account with a 5% APR, you would earn $50 in simple interest after one year. However, if the account compounds interest monthly, your APY would be higher because you earn interest on both the principal and the accumulated interest.

APY is particularly important for long-term savings because it shows the true growth of your money over time.

How to Calculate APY

The formula for calculating APY is:

APY = (1 + (APR / n))ⁿ - 1

Where:

APR = Annual Percentage Rate
n = Number of compounding periods per year

For example, if a savings account offers a 5% APR and compounds interest monthly (n = 12), the APY would be calculated as follows:

APY = (1 + (0.05 / 12))¹² - 1 ≈ 5.116%

This means that after one year, you would earn approximately 5.116% on your deposit, not just 5%.

APY vs APR

The main difference between APY and APR is that APY accounts for compounding interest, while APR does not. This means that APY will always be higher than APR when interest is compounded.

Metric	Description	Example
APR	Annual Percentage Rate, simple interest	5% APR on $1,000 = $50 after 1 year
APY	Annual Percentage Yield, compounded interest	5% APR, monthly compounding = ~5.116% APY on $1,000 = ~$51.16 after 1 year

When comparing savings accounts or investments, always look at the APY to get a true picture of your earnings.

How to Use This Calculator

Our APY calculator makes it easy to determine the actual yield of your savings account. Simply enter the APR and the number of compounding periods per year, then click "Calculate" to see your APY.

Enter the Annual Percentage Rate (APR) of your savings account.
Select the number of compounding periods per year (e.g., monthly, quarterly, annually).
Click "Calculate" to see your APY.
Review the result and compare it with other savings options.

This calculator helps you make informed decisions about where to park your money for maximum returns.

FAQ

What is the difference between APR and APY?

APR is the simple interest rate, while APY accounts for compounding interest. APY will always be higher than APR when interest is compounded.

How often should interest be compounded to maximize APY?

The more frequently interest is compounded, the higher your APY will be. Monthly compounding is common in savings accounts.

Can APY be negative?

Yes, if the APR is negative, the APY will also be negative. This typically happens during periods of economic downturn.

Is APY the same as interest rate?

No, APY is the effective annual rate that accounts for compounding, while the interest rate is the simple rate before compounding.