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.

How to calculate cash back

**First, determine the rate of cash back of the card.**This rate is typically shown as a % of a total purchase amount.

**Next, determine the total purchase amount**Typically this purchase amount is the total purchase including taxes.

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

## FAQ

**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.

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