Discount Calculator

Calculate the sale price and the amount you save after a percentage discount. 🔒 Runs in your browser

Price after discount–
You save–
Formulas
  • Sale price = Price × (1 − Discount)
  • Savings = Price × Discount

How to use the Discount Calculator

  1. Choose your currency if the calculator uses amounts.
  2. Enter your own numbers in the fields (the examples are only a starting point).
  3. Results update instantly as you type.
  4. Check the formulas below the results, and copy the results to share them.

About this tool

Quickly check a sale price, or decide how big a promotion you can afford.

Frequently asked questions

Are two discounts of 20% the same as 40%?

No. 20% then 20% is 1 − 0.8 × 0.8 = 36% off in total.

Are my numbers saved or sent anywhere?

No. Everything is calculated in your browser; only your currency choice is remembered on this device.

Is the Discount Calculator free?

Yes. The Discount Calculator is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

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