Is "30% off, then an extra 20% off at checkout" the same as 50% off? (It isn't: it's 44% off.) This free discount calculator shows exactly what you'll pay and how much you save. Enter the original price and the percentage off to get the sale price and your savings instantly. Add a second, stacked discount, such as a coupon code or loyalty offer applied after the first, and the calculator applies it correctly to the already-reduced price and tells you the true combined discount. You can also add sales tax or VAT so you see the real amount at the till, which matters in the US and Canada where tax is usually added at checkout. Working backwards? The reverse box finds the original price from a sale price and the discount, handy for checking whether a "was" price is believable. It's useful for Black Friday, Cyber Monday, Boxing Day and end-of-season sales across the US, UK, Canada, Australia and Germany, and for shop owners setting promotional prices. Remember that a big percentage off an inflated "original" price isn't always a real deal, so compare with the price history where you can. Everything runs in your browser.
Calculate a discount
Find the original price
How to use the discount calculator
- Enter the original price and the % off.
- Add an extra discount if a coupon applies on top.
- Add tax if it's charged at checkout where you live.
Formulas
- Sale price = price × (1 − d/100)
- Stacked: price × (1 − d1/100) × (1 − d2/100)
- Original price = sale price ÷ (1 − d/100)
FAQ
Do two discounts add together?
No. The second applies to the already-reduced price. 30% then 20% off equals 44% off, not 50%.
Is tax calculated before or after the discount?
Normally after, on the price you actually pay. Coupons from manufacturers can differ in some US states.
How can I tell if a sale is real?
Check price history on trackers or compare across shops; some “original” prices are inflated.
Is anything saved?
No. Everything runs in your browser.
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