Percent Off Calculator
Find the sale price on any percent-off deal in seconds. Supports stacked discounts and sales tax, right on this page. Nothing you enter ever leaves your browser.
Calculate your savings
How to use this percent off calculator
- Enter the original price of the item.
- Pick a preset discount or slide to any custom percent.
- Add a second stacked discount or sales tax if they apply, and see your sale price, savings, and final total instantly.
Discount calculator: common questions
How do you calculate a percent off? Multiply the price by one minus the discount as a decimal. For 25% off an $80 item: $80 x 0.75 = $60.
How do stacked discounts work? They apply one after another, not added together. A 20% discount followed by an extra 10% off means you pay 90% of 80% of the price. On $80: $80 x 0.8 x 0.9 = $57.60. That is a 28% total savings, not 30%.
Is sales tax applied before or after the discount? Retailers apply sales tax to the discounted sale price, and this calculator does the same.
Is this tool a discount calculator too? Yes. The same math behind any discount calculator is running above: sale price, dollar savings, and savings percent, all in one place.
Free to use, no sign up, and your numbers never leave your browser. This tool provides estimates only. Final prices and taxes vary by retailer; verify at checkout.