## Help

**Initial deposit**

The starting balance for your certificate of deposit, savings account or investment. You are allowed to use comma for digit grouping and the decimal mark must be a dot. Please do not use currency symbol.

**Annual percentage yield**

This is the effective annual percentage yield earned for this investment. APY depends on the frequency of compounding and the interest rate and must be quoted by law.

**Length**

Enter the length of time in years or months for your investment. If you modify either of the input fields, the other one will be automatically populated with the correct data.

**Compounding frequency**

This calculator allows you to choose the compounding frequency of your investment. This is the frequency, when your earned interest income is added to your account.

**Annual percentage rate**

This is the effective annual percentage rate converted from the annual percentage yield. If you wish to calculate loan or mortgage APR, please select the mortgage APR calculator from the menu above. This APR depends on the periodic nominal interest rate and the number of periods per year.

**Ending balance**

The account balance at the end of a period that reflects all transactions occurring during that period. This is the amount of money that you will have on your account at the end of your investment.

## Welcome to APR Calculator

This free tool can be used as a **Certificate of Deposit** and **saving account** **APY to APR calculator**. It makes conversion from **annual percentage yield** to **annual percentage rate**.

Select the **APY calculator** from the menu above, to convert interest rates from **APR to APY** or select the **mortgage APR calculator** for mortgage loan APR calculation.

Simply fill in your data to the appropriate fields and the converted annual percentage rate (a.k.a. nominal APR) will appear at the bottom of the calculator.

For more information click the help button.

## APY to APR and APR to nominal interest rate conversion

The **annual percentage yield** is the percentage rate of interest earned by a deposit account based on the interest rate and the frequency of compounding for a 365-day year. **APY** helps you to calculate the yearly return on an investment such as a money market account. Annual percentage yield must be disclosed to consumers by law for comparison purposes.

For cetificate of deposits and savings accounts, the **APR** is an annualized rate (a rate for a whole year) based on periodic rates. Calculation: periodic interest rate multiplied by the number of periods in a year.

**Interest rate** or **nominal interest rate** (rate of interest before adjustment for inflation) is the percentage of a sum of money charged for its use. It can be applied on savings and investments, where the deposited money earns interest, or for loans and mortgages, where the interest is paid for the use of the borrowed money. Interest rate can be expressed for an exact period of time, or for a whole year (annual interest rate).