Financial Calculators

Discount Chain Calculator

Apply several discounts in sequence and see the single equivalent discount they add up to.

Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.

$
%
%
%
Final price
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What makes up the totalprincipalinterestfeesChange one input and watch which block moves. That is usually more useful than the total itself.

Stacked discounts never add

20% off then a further 10% off is not 30% off — it is 28%, because the second discount applies to the already-reduced price. The gap widens with bigger numbers: 50% then 50% is 75% off, not 100%. Retail advertising relies on the intuition being wrong in the shop's favour.

The formula

Final = price × (1 − d₁)(1 − d₂)(1 − d₃)

Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.

How to use the Discount Chain Calculator

  1. Fill in each field with your own figures — the defaults are only there as an example.
  2. The result updates as you type, so there is no button to press.
  3. Check the breakdown under the main result for the supporting numbers.
  4. Use the copy button to take the result with you, or share the link to reload the same inputs.

Discount Chain Calculator — frequently asked questions

Is this discount chain calculator free to use?

Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.

How accurate is the result?

The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.

Can I use it on my phone?

Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.

What people search for

This page answers each of these searches. They are the exact phrases visitors use to find the discount chain calculator.

  • discount chain calculator
  • extra percent off sale price
  • chained discounts
  • discount on discount
  • multiple discounts
  • stacked discount calculator

About this calculator

Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.

Last reviewed August 23, 2026 · Calculation runs client-side · No data collected · Report an error