Instant calculator

Discount Calculator

Calculate discount amount and final price, with an example showing why sequential discounts are not simply added together.

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INPUT

Input data

Enter the required values, then run the tool.
01

OUTPUT

Result

Ready
02
Your result will appear here

Complete the form and run the tool to see the result.

Usage guide

Use the tool with confidence

Enter the required data, review the result, then copy or export it as an image or PDF depending on the tool.

When to use it

Use it when you need a clear result without building a manual formula or spreadsheet.

How it works

Enter values, run the tool, then review the result and supporting details.

Note

Review the figures and context before making financial or business decisions.

Discount amount and final price

This calculator shows the money saved and the remaining price after applying a percentage discount to an original price. It is useful for checking sale labels or comparing offers.

Inputs and field meanings

Review these values before running the tool. The labels below come from the actual form so the guidance matches what you will use on this page.

  • Original price: required, minimum 0.
  • Discount rate: required, minimum 0, maximum 100.

Discount formula

Discount amount = original price × discount rate ÷ 100.

Price after discount = original price - discount amount. Taxes or later fees should be calculated separately using the basis that applies to them.

Shopping example

Original price 320 with 25% off: discount = 320 × 0.25 = 80, so the discounted price is 240.

Common mistakes

  • Enter 25 for a 25% rate when the field expects a percentage, not 0.25.
  • Make sure the original price really is the pre-discount price.
  • Sequential discounts such as 20% then 10% do not equal one 30% discount because the second rate applies to a lower price.

Discount questions

Is 20% off followed by 10% off the same as 30% off?

No. A price of 100 becomes 80 and then 72, which is an effective 28% discount.

How much did I save?

The calculated discount amount is the saving compared with the original price before later taxes or fees.

Does this include tax?

Not unless the tool explicitly says so. This calculation is for discount; tax is a separate step.