Sale price, amount saved, and total from a price and discount
A discount calculator works out the sale price and amount saved when a percentage discount is applied to a price — and can also work backwards to figure out what discount percentage a sale price actually represents.
Enter the original price and discount percentage.
Add quantity and tax if they apply.
Sale price, savings, and total update instantly.
Amount saved = Original price × (Discount % / 100), then
Sale price = Original price − Amount saved. For example, 20% off a $50 item saves
$10, for a sale price of $40. If tax applies, it's calculated on that $40 sale price, not the original
$50 — the same way most stores ring it up at checkout.
Two discounts applied one after another — say, 20% off, then an extra 10% off that already-reduced price — don't combine into 30% off. The second discount applies to the smaller number, so the real combined discount is a bit less than 30%. Run the calculation twice, using the first result as the starting price for the second, to stack discounts accurately.
Already know what something cost before and after a sale, but not the percentage? Use the second section: enter the original price and what you actually paid, and it works out the equivalent discount percentage.
Check the real price before checkout, tax included.
Work out sale prices for a batch of items at a set discount.
Figure out which of two differently worded discounts is actually better.
Multiply the original price by the discount percentage to get the amount saved, then subtract that from the original price to get the sale price. For example, 20% off $50 is $10 off, for a sale price of $40.
Enter one combined percentage for a single discount. Two discounts applied one after another (like 20% off, then an extra 10% off) don't simply add to 30% — they compound, so apply them as two separate calculations if you're stacking coupons.
After. Tax is applied to the discounted price, not the original price, matching how most retailers calculate it at checkout.
Yes — use the second section, enter the original price and the price you actually paid, and it works out what percentage discount that represents.
No. Nothing is saved or sent anywhere — everything runs in your browser and clears when you refresh or close the page.