Discount Calculator - Sale Price Finder

  • Find Sale Price from Original + Discount
  • Find Original Price from Sale Price + Discount
  • Find Discount % from Original + Sale Price
  • Two Successive Discounts
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Shopping a sale and wondering if you're getting a good deal? Or trying to figure out what the original price was before that mysterious "20% OFF" sign? Our Discount Calculator handles all your sale price math.

Choose from four modes: calculate the sale price given the original price and discount percentage, reverse-engineer the original price from what you see on the tag, determine the actual discount percentage when you know both prices, or handle two successive discounts (like a storewide 15% plus a coupon for 10% off).

Understanding discount math saves real money. Many shoppers assume two discounts of 20% each equal 40% off — they don't. Applied sequentially, 20% off twice gives roughly 36% off the original. This calculator shows you the real bottom line.

Pro tip: always compare discounts on the same basis. A "buy one get one 50% off" deal on two $10 items is effectively a 25% discount, not 50%.

صيغة
Sale Price = Original × (1 − Discount% ÷ 100) | Original = Sale ÷ (1 − Discount% ÷ 100) | Two Discounts: apply sequentially

الأسئلة الشائعة

Is 20% off better than $5 off?
It depends on the price. 20% off is better when the item costs more than $25 ($25 × 20% = $5 off). For cheaper items, a flat dollar discount may be better. Use the "Find Discount %" mode to compare.
How do stacked discounts work?
Stacked discounts are applied sequentially — the first discount reduces the price, then the second discount is applied to the already-reduced price. Two 20% discounts don't equal 40% off; they equal about 36% off total.
Can I use this for tax calculations?
This calculator finds the pre-tax sale price. To calculate tax on a discounted item, first find the sale price here, then multiply by (1 + your tax rate). Tax is usually applied after discounts.
Which is better: $10 off or 10% off?
10% off is better when the item costs more than $100. $10 off is better for items under $100. At exactly $100, both give the same $10 savings.

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