Discount Calculator
Calculate the sale price and amount saved from an original price and a discount percentage. Great for shopping and Black Friday deals.
Buy X get Y free → complete-group discount
Default: tax is applied after discounts. Tax-base rules vary by location.
Tax at checkout? Sales tax calculator · margin on sale price: Margin calculator · invoice: Invoice generator.
How to use
Stack promos correctly, convert BOGO deals to a true percentage, and see what checkout really costs with tax.
FAQ
How do stacked discounts work?
20% then 10% is NOT 30% — the second discount applies to the already-reduced price. This tool shows the true combined percentage.
What is Buy X get Y free?
Enter how many items you pay for and how many are free. Buy 2 get 1 free means 33.33% off the original total price of each complete 3-item group.
Does it add tax?
By default, optional sales tax is applied after discounts. Tax-base rules vary by location.
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