Discount Calculator

Enter a price and a discount percentage to see the final price and how much you save — or work backwards from old and new prices.

All calculations happen in your browser.

How to use Discount Calculator

  1. Enter the original price and the discount percentage.
  2. The final price and the amount saved appear instantly.
  3. Use the second mode to find the discount percentage from old and new prices.

About this tool

Sales rarely come with the maths already done. This calculator shows the price after discount, the exact amount saved, and — when you only know the before and after prices — the effective discount rate.

Frequently asked questions

Does it support fixed-amount discounts?
Yes — the “fixed amount” mode subtracts a flat sum (like a £10 voucher) instead of a percentage.

Related tools

Percentage Calculator Calculate percentages — X% of a number, percentage change, and more. Compound Interest Calculator See how savings grow with compound interest over time. Unit Converter Convert units of length, weight, temperature, area, volume and more.