Calculadora de descontos (percent off / fixed desconto / bundle deals)

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

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

Percent off, fixed desconto, and bundle deals Compare scenarios and spot the cheapest option Restaurar a última configuração neste dispositivo

What this tool covers

Instant totals

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

Descontos em cascata

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 código da moedas, URL de partilhas, and navegador save to reproduce the same pricing logic across teams and regions.

Como usar

  1. Enter the código da moeda, original unit preço, and quantity.
  2. Choose the desconto type and fill in only the fields that apply.
  3. Review the final total, average unit preço, desconto amount, and effective desconto rate.
  4. Open stacked descontos or comparison mode when needed, then copy the share link.

Exemplos comuns

25% off a sale item

Entrada

Calculate 39.80 for 2 items with 25% off

Saída

List total 79.60, final total 59.70, desconto amount 19.90

Segundo artigo a metade do preço

Entrada

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

Saída

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

Escalões de quantidade

Entrada

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

Saída

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

Perguntas frequentes

Can I stack multiple descontos?

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

How is arredondamento handled?

This page offers lightpeso arredondamento choices: none, floor, ceil, and round. If you need more detailed regras de arredondamento, use the related cash-arredondamento tool.

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

Tax conversion itself belongs in a separate tool. This page is designed for desconto 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 preço.

What happens when the fixed desconto is larger than the preço?

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

What does effective desconto rate mean?

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

Notas importantes

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