WiseCalcs

Discount calculator

Enter the original price and the discount percentage. The calculator shows the final price and how much you save as you type.

Use it to find the sale price after a percentage off, and to see the exact amount you save.

USD
%

Final price

$80.00

You save: $20.00

The result updates as you type. The bar splits the original price into what you pay and what you save.

How does it work?

The final price is the original price minus the amount saved.

Discount formula

saved=price×d100final=price−saved\begin{aligned} &\text{saved} = \text{price} \times \tfrac{d}{100}\\[2pt] &\text{final} = \text{price} - \text{saved} \end{aligned}
price
The original price before the discount.
d
The discount as a percentage (0–100).

20% off 100 saves 20, for a final price of 80.

Method & sources

A single percentage discount is applied to the original price. The currency shown follows the site language; the discount math is the same in every market. Taxes, shipping, and stacked or coupon discounts are not included.

Sources

Where this method comes from — use these references to understand the formula, assumptions, and limits.

How we calculate

  • A single percentage discount is applied to the original price.
  • The currency shown follows the site language; the discount math is the same in every market.
  • Taxes, shipping, and stacked or coupon discounts are not included.

Rounding

Prices are rounded to two decimals for display. The calculation itself uses full precision.

What this calculator does

A discount takes a percentage off a price. This calculator applies that percentage to the original price and shows both the final price you pay and the amount you save.

How to use it

  1. Enter the original price.
  2. Enter the discount as a percentage.
  3. Read the final price and the amount saved below.

A worked example

A jacket priced at 100 is 20% off. Enter 100 and 20, and you get a final price of 80 with 20 saved.

Common mistakes

  • Confusing the discount with the final price. A 20% discount on 100 is a saving of 20, leaving a price of 80.
  • Stacking discounts by adding the percentages. Two 10% discounts are not a 20% discount; apply them one after the other.
  • Forgetting that tax and shipping are added on top of the discounted price.

When it's useful

Sales, clearance prices, coupon offers, and quick checks at the till to confirm the advertised saving.

FAQ

How do I calculate a discount?
Multiply the price by the discount percentage divided by 100 to get the saving, then subtract it from the price. 20% off 100 saves 20, for a final price of 80.
What is the difference between the discount and the final price?
The discount is the amount taken off; the final price is what you pay after that amount is subtracted.
Can I apply two discounts at once?
Not directly. Two discounts are applied one after the other, not added together. A 10% then another 10% is a 19% total saving, not 20%.
Does this include tax or shipping?
No. The calculator works on the price only. Tax and shipping are added on top of the discounted price.
Which currency does it use?
The currency follows the site language. The discount math is identical in every market.
Can I share a calculation?
Yes. Use Share to copy a link that reopens the calculator with the same price and discount.

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Embed this calculator

Add this calculator to your own site. The snippet includes the calculator iframe and a small attribution link:

<iframe src="https://wisecalcs.com/embed/en/discount-calculator" width="100%" height="520" style="border:0" loading="lazy"></iframe> <p>Calculator from <a href="https://wisecalcs.com/en/finance/discount-calculator">WiseCalcs</a></p>