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Discount Calculator

Enter the original price and the discount to see the sale price and how much you save. Switch on a second discount to stack a coupon on top of a sale, and add sales tax to get the amount you will actually pay at the register.

Quick examples
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Charged on the discounted price. Leave at 0 to skip.

Your numbers stay in your browser. Nothing is uploaded.
You pay$60.00
Price after discount
$60.00
You save
$20.00
Total discount
25%
Sales tax
$0.00

Saved setups

Save a set of inputs you reuse — your usual rate, your loan, your room sizes — and load it back in one tap.

    Your recent calculations

    Results you calculate here are kept on this device so you can come back to them.

      Formula

      Sale price = original price × (1 − discount ÷ 100)
      With a second discount: sale price × (1 − second discount ÷ 100)
      Total discount % = (original price − final price) ÷ original price × 100
      You pay = discounted price × (1 + sales tax ÷ 100)

      How to use it

      1. Enter the original price.
      2. Enter the discount percentage.
      3. If there is an extra discount on top, switch on the second discount and enter it.
      4. Add your sales tax rate to see the final amount including tax.

      Worked examples

      25% off an $80 jacket

      Price after discount
      $60.00
      You save
      $20.00
      You pay
      $60.00

      30% off $120, an extra 20% off at the register, then 8% sales tax

      Price after discount
      $67.20
      You save
      $52.80
      Total discount
      44%
      Sales tax
      $5.38
      You pay
      $72.58

      Stacked discounts do not add up

      “30% off, plus an extra 20% off” is not 50% off. The second discount applies to the already reduced price: 30% off $120 is $84, and 20% off $84 is $67.20. The total discount is 44%.

      The combined rate is 1 − (1 − first) × (1 − second). The order makes no difference to the final price: 20% then 30% gives the same $67.20.

      Tax comes after the discount

      In most US states, sales tax is charged on the price you actually pay after a store discount or store coupon. Manufacturer coupons are often treated differently — the tax may be due on the full price — so a receipt can come out a few cents higher than this calculator shows.

      Questions people ask

      How much is 20% off $50?

      $40. The discount is $10 (20% of $50).

      How much is 25% off $80?

      $60. You save $20.

      What is 30% off plus an extra 20% off?

      44% off in total. On a $120 item you pay $67.20, not the $60 a straight 50% off would give.

      Is 50% off plus another 50% off free?

      No. The second 50% is taken from the half that is left, so you pay 25% of the original price — a total discount of 75%.

      Related calculators

      Percent Off CalculatorPrice after a percent off — or the percent off between two prices.Sales Tax CalculatorAdd sales tax to a price, or back it out of a total.Percentage CalculatorWhat is X% of Y, X is what percent of Y, and X is Y% of what.Percent Decrease CalculatorFind the % decrease between two numbers, or take a % off a number.Unit Price CalculatorCompare two or three sizes by price per unit to find the best buy.