Discount Calculator
Calculate sale prices and savings.
About Discount Calculator
Calculate the sale price and the money you save when a discount is applied. Enter the original price and the percentage off to instantly see the final price and the exact amount saved, so you can check a deal at a glance while shopping or price your own products with confidence. It removes the mental math from percent-off sales, stacked promotions, and quick comparisons between offers. The calculation updates as you type and runs entirely in your browser, so there is nothing to install and no signup needed. Because it is free and works on phones, you can pull it up in a store to verify a bargain on the spot.
How to use this tool
- 1Enter the original price.
- 2Enter the discount percentage.
- 3See the final price and the amount saved.
Frequently asked questions
How is the sale price calculated?
Final price = original price * (1 - discount / 100). A $80 item at 25% off costs $60.
Can I stack two discounts?
Apply them one after another; a 20% then 10% discount is 28% total, not 30%, because the second applies to the reduced price.
Related guide
6 min readPercentage Math Without Tears: Discounts, Increases, and Reverse Percentages
The three types of percentage problems, how to reverse a percentage (the one everyone gets wrong), and the mental math shortcuts that make it instant.