Discount Calculator
Calculate the final price after a discount, and how much you save.
How to use Discount Calculator
- Enter the original price of the item.
- Enter the discount percentage being applied.
- The sale price and total savings update instantly.
- Switch to 'Find % off' if you know the original and sale price and want to find the discount percentage instead.
About this tool
The Discount Calculator works out the sale price after applying a percentage discount, the exact amount you save, and can also run in reverse to find what discount percentage was applied given an original and sale price. All calculations run instantly in your browser as you type — nothing is uploaded or sent to a server.
Frequently Asked Questions
How do I calculate a discount?
Multiply the original price by the discount percentage, then divide by 100 to get the amount saved. Subtract that from the original price to get the sale price. For example, 20% off $50 saves $10, making the sale price $40.
How do I find what percentage discount was applied?
Subtract the sale price from the original price to get the amount saved, divide that by the original price, then multiply by 100. Use the 'Find % off' mode above to do this automatically.
Does this work for stacked or multiple discounts?
This calculator applies one discount at a time. For stacked discounts (e.g. 20% off, then an extra 10% off), apply the first discount, then use the resulting sale price as the original price for the second discount.