Cash Back Calculator

Enter the % cash back of your card and the total purchase amount into the calculator. The calculator will determine the total amount of cash back earned.

Cash Back Formula

The following formula is used to calculate the cash back earned using a given credit card and purchase amount.

C = P * C%/100

  • Where C is the total amount cash back
  • P is the total purchase amount
  • C% is the cash back % earned while using the card.

Cash Back Definition

Cash back is defined as the total currency a person receives back from the purchase of a good or service due to some benefit on a credit card on program.

Cash Back Example

How to calculate cash back

  1. First, determine the rate of cash back of the card.

    This rate is typically shown as a % of a total purchase amount.

  2. Next, determine the total purchase amount

    Typically this purchase amount is the total purchase including taxes.

  3. Finally, calculate the cash back amount

    Using the formula above, the percentage, and total purchase price, calculate the cash back earned on a purchase.


What is cash back?

Cash back is a term used in finance to describe a reward earned from using a companies financial device. This is most often through the use of a credit card. The amount of cash back earned it determined when signing the credit card agreement. These can range from anywhere between 1% and 5%.

Is there a limit to cash back?

On some credit cards there is a limit to how much cash back can be earned on a given purchase or given time period. Other times, the cash back is unlimited.

cash back calculator
cash back formula