Discount Calculator (percent off / fixed discount / bundle deals)

Enter the original price and quantity, choose the promotion type, and check the final total, average unit price, discount amount, and effective discount rate instantly.

Also supports stacked discounts, side-by-side comparison, shareable URLs, and restoring the last setup on this device.

Percent off, fixed discount, and bundle deals Compare scenarios and spot the cheapest option Restore the last setup on this device

What this tool covers

Instant totals

As soon as the price or quantity changes, the page updates the final total, average per unit, discount amount, and effective rate.

Stacked discounts

Try order-sensitive combinations such as percentage first and fixed amount second, then review the intermediate totals.

Comparison mode

Duplicate the current setup into multiple scenarios and compare which promotion gives the lowest final total.

Global-friendly

Use currency codes, share URLs, and browser save to reproduce the same pricing logic across teams and regions.

How to use

  1. Enter the currency code, original unit price, and quantity.
  2. Choose the discount type and fill in only the fields that apply.
  3. Review the final total, average unit price, discount amount, and effective discount rate.
  4. Open stacked discounts or comparison mode when needed, then copy the share link.

Common examples

25% off a sale item

Input

Calculate 39.80 for 2 items with 25% off

Output

List total 79.60, final total 59.70, discount amount 19.90

Second item half off

Input

Calculate 24.00 for 3 items with one half-price item in every pair

Output

The first pair costs 36.00, the extra item stays full price, total 60.00

Quantity tiers

Input

At quantity 5, set 2+ items to 5% off and 5+ items to 10% off

Output

The strongest eligible tier is applied automatically, so the 5+ / 10% tier is highlighted

FAQ

Can I stack multiple discounts?

Yes. Turn on "Stack multiple discounts" in the detailed options and add up to five steps. Because the order can change the outcome, the page also shows the intermediate totals.

How is rounding handled?

This page offers lightweight rounding choices: none, floor, ceil, and round. If you need more detailed rounding rules, use the related cash-rounding tool.

Can I check tax-inclusive or tax-exclusive totals too?

Tax conversion itself belongs in a separate tool. This page is designed for discount calculation first, with the tax-converter tool used afterward when needed.

How many items can use the second-item-half-off rule?

By default the rule repeats for every pair of items. If the quantity is odd, the remaining item stays at full price.

What happens when the fixed discount is larger than the price?

The final total is never allowed to go below zero. When the discount hits that floor, the page shows a warning as well.

What does effective discount rate mean?

It is the share of the list total that was actually removed. On this page it is always calculated as discount amount divided by list total.

Important notes

  • Treat the result as a reference value. Legal display requirements and promotion rules can differ by country and region.
  • Coupons, shipping, loyalty points, tax treatment, and mixed-price baskets can change the real amount paid.
  • Second-item-half-off and bundle rules assume same-price items unless you compare them as separate scenarios.
  • Inputs stay inside the browser and are not sent to the server.