Discount Calculator

Sale price and real saving, including stacked and multi-buy offers.

You pay
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—
You save
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Effective discount
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Price per item
Price breakdown
How this works
Sale price = Original × (1 − Discount ÷ 100) Original = Sale price ÷ (1 − Discount ÷ 100)
OfferYou pay forReal discount
Buy 1 get 1 free1 of 250%
Buy 2 get 1 free2 of 333.3%
Buy 3 get 1 free3 of 425%
Buy 1 get 1 half price1.5 of 225%
30% off, then 20% off—44%
  • Stacked discounts multiply, never add: $200 → $140 → $112.
  • Tax applies after the discount, so a discount lowers the tax too.
  • A multi-buy only saves money on items you would have bought anyway.

Currency

  • Amounts follow the currency selected above.
Is 30% off plus 20% off the same as 50% off?

No. The second discount applies to the already-reduced price, giving 44% off in total. A $200 item costs $112, not $100.

How do I find the original price from a sale price?

Divide by 1 minus the discount as a decimal. A $90 item after 25% off was originally 90 ÷ 0.75 = $120.

Is tax charged before or after the discount?

Almost always after. Sales tax, VAT and GST apply to what you actually pay, so a discount lowers the tax too.

Keep going
Percentage Calculator Find a percentage of a number, or the percentage change between two numbers. GST / Sales Tax Calculator Add or remove GST, VAT or sales tax at any rate, with the split shown. Compound Interest & SIP Calculator Growth of a lump sum plus regular monthly investments, year by year.