Discount calculator (price after % off)

Find the sale price and the amount you save from an original price and a percentage off. You can also work out the percentage off from two prices.

Price after a discount

% off

Percentage off from two prices

How to use

  1. Enter the original price and the discount in percent, or tap a preset such as 20%.
  2. The sale price and the amount saved appear right away. Choose the rounding unit (such as 0.01 or 1) and whether to round down, to the nearest or up.
  3. Under "Percentage off from two prices", enter the original and sale price to see the discount rate.

Notes and limits

  • Prices are plain numbers in any currency. No currency conversion is done.
  • Sales tax, cashback and stacked discounts (for example 20% off and then another 10% off) are not included.
  • How shops round prices varies. The default is to the nearest 0.01; change the rounding unit to match your currency or shop.
  • The discount must be between 0% and 100%.

How it works

Sale price = original price × (1 − discount ÷ 100), then rounded to the chosen unit with the chosen method. Amount saved = original price − sale price.

Percentage off = (original price − sale price) ÷ original price × 100, shown to one decimal place.

FAQ

Is 20% off and then 10% off the same as 30% off?

No. On 100.00, 20% off gives 80.00, and 10% off that gives 72.00, which is 28% off in total. Calculate the two discounts one after the other.

What rounding unit should I choose?

Use 0.01 for currencies with cents, such as dollars or euros, and 1 or a larger unit for currencies without them.

Is anything I enter sent or saved?

No. The calculation runs in your browser and nothing is sent or stored.

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