Find the sale price and savings — or work backward to the original price
💡 Why This Matters "25% off" sounds simple until you're doing the math in a checkout line. This calculator finds your exact sale price and savings instantly — or, if you only know the sale price, works backward to reveal what the item cost before the discount.
Stacked discounts don't add together the way most people assume — 20% off plus an extra 10% off is actually about 28% off total, not 30%, since the second discount applies to the already-reduced price.
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A discount reduces a price by a percentage. To find the sale price, multiply the original price by the discount rate (expressed as a decimal — so 25% becomes 0.25) to get your savings, then subtract that from the original price. This calculator does both steps automatically, and can also work backward: given a sale price and discount percentage, it reveals what the item cost before the markdown.
The large number is your actual sale price — what you'll pay at checkout before tax. The breakdown underneath separates your dollar savings from the original price, which is handy for comparing deals or tracking how much a sale actually saved you versus just seeing a percentage.
This calculator handles a single flat discount rate. It doesn't account for stacked or sequential discounts (like an extra 10% off an already-discounted item), which compound differently than simple addition — see the Did You Know box above for why. It also doesn't include sales tax, which is typically applied after the discount, not before.
Use this to quickly verify a sale price matches the advertised discount, to compare deals across different percentage-off promotions, or to reverse-engineer an item's original price when you only see the marked-down tag. Combine with the Sales Tax Calculator to find your true final total after both discount and tax.
Example (forward): Say an item costs $80.00 and is 25% off. Savings = $80.00 × 0.25 = $20.00. Sale price = $80.00 − $20.00 = $60.00.
Example (reverse): Say the sale price is $60.00 after a 25% discount. Original price = $60.00 ÷ 0.75 = $80.00, meaning you saved $20.00.
Multiply the original price by the discount rate expressed as a decimal, then subtract that amount from the original price. For example, a $80 item at 25% off: 80 × 0.25 = $20 savings, so the sale price is $60.
Yes, but stacked discounts apply sequentially, not by adding the percentages together. 20% off then 10% off is not 30% off total — the second discount applies to the already-reduced price, so the combined savings is slightly less than 30%.
Divide the sale price by 1 minus the discount rate (as a decimal). For example, if an item is $60 after a 25% discount: 60 ÷ 0.75 = $80 original price. Use "Reverse from Sale Price" mode above to do this automatically.