Discount Calculator: Calculate Sale Price and Savings
Calculate sale price, discount amount, and optional tax.
Inputs
Discount Calculator
Results update as you type.
Live result
Discount amount
$30.00
Sale price
$90.00
After-tax total
$97.20
Scenario compare
Save scenario A, change a few inputs, then save scenario B.
Scenario A
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Scenario B
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Quick check
Change one or two inputs to compare a second scenario before using the number.
Need more detail?
Formula, examples, and FAQ stay tucked away until you need them.
FXFormula ExplanationThe core logic behind the numbers on this page.+
To calculate the discount amount, multiply the original price by the discount percentage divided by 100. Then, subtract the discount amount from the original price to get the sale price. If you want to include tax, add the tax rate to the sale price. Keep in mind that some stores apply coupons and taxes in different orders.
USEHow to UseA short path from input to result.+
- Enter the original price.
- Enter the discount percentage.
- Add tax rate if you want an after-tax total.
EXExamplesReference scenarios to sanity-check your inputs.+
Example: 25% off $120 saves $30 and gives a $90 sale price before tax.
FAQFAQCommon edge cases and quick clarifications.+
What is the formula for calculating the discount amount?
Discount amount = original price x discount percentage / 100.
How do I calculate the sale price?
Sale price = original price - discount amount.
Can I enter a zero tax rate?
Yes, enter 0 if tax does not apply or if you only need the pre-tax sale price.
What is the purpose of the discount calculator?
The discount calculator helps you estimate the final price of an item after applying a discount percentage and tax rate.
How do I use the discount calculator?
Enter the original price, discount percentage, and tax rate to get the sale price and discount amount.