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Discount Calculator

Work out the sale price, total savings, and overall percent off for stacked percentage or fixed-amount discounts, or reverse it to find the discount between two prices.

Calculate

A plain number in any currency. Calculated in your browser; nothing is uploaded.

Discounts

Mix percentages and fixed amounts. Each discount applies to the price left by the one before, so 20% then 10% takes off 28% in total, not 30%.

Enter the original price to see the sale price.

How to calculate a sale price from a discount

  1. Pick the calculation

    Choose Sale price to take discounts off a price, or Percent off to compare an original price with the price you paid.

  2. Enter the original price

    Type the pre-sale price as a plain number in any currency. Results appear as soon as you type; there is no button to press.

  3. Add the discounts or the paid price

    In Sale price mode, enter each discount and switch any row between a percentage and a fixed amount; stacked discounts each apply to the already reduced price. In Percent off mode, enter the price you paid.

  4. Read and copy the result

    The sale price, the total saved, and the overall percentage off update live. Click Copy result to put the summary on your clipboard.

Why use this tool

Percentage or fixed-amount discounts

Each discount can be a percentage or a flat amount off, and you can mix the two, so a percentage code and a money-off voucher combine in one calculation.

Stacked sequential discounts

Add up to three discounts and each applies to the already reduced price, exactly how checkout codes combine, so 20% then 10% comes to 28% off, not 30%.

Reverse to find the discount

Percent off mode takes an original price and the price you paid, then returns the discount as a percentage plus the amount saved, handy for checking a receipt or a tag.

Effective rate readout

When discounts stack or a fixed amount is involved, the tool shows the single percentage they amount to, so you can compare offers at a glance.

Total savings figure

The difference between the original and the sale price is shown as its own number, so you know exactly how much stays in your pocket.

Nothing is transmitted

Prices and discounts are processed by the page alone; nothing you type is uploaded, stored, or logged.

About this tool

This discount calculator works out what you actually pay after money comes off a price. Enter the original price and one or more discounts, and the sale price, the amount saved, and the overall discount rate appear as you type. Each discount can be a percentage or a fixed amount, and you can mix the two. Discounts stack the way checkouts do: each one applies to the price left by the one before, not to the original. A 100 item with 20% off drops to 80, and a further 10 off comes off that 80, leaving 70. Two percentage codes behave the same way, so 20% then 10% takes off 28% in total, not the 30% you might expect from adding them.

That gap is why the effective rate readout exists. When more than one discount stacks, or a fixed amount is involved, the tool shows the single percentage they amount to, which makes competing offers directly comparable. A flat 40% off beats a stacked 30% plus 10%, which only reaches 37%. The Percent off mode reverses the sum: enter the original price and the price you paid, and it returns the discount as a percentage along with the amount saved, useful for checking a receipt or a marked-down tag. For plain percentage questions outside shopping, the percentage calculator covers increases, decreases, and shares of a total.

Results are plain numbers shown to two decimal places, so the tool works in any currency, and taxes are deliberately left out since they vary by place and product. Everything is calculated in your browser and nothing you type leaves the page. When splitting a restaurant bill rather than chasing a sale, the tip calculator is the better fit, and for the cost of borrowing rather than the size of a saving, there is a loan calculator. One click on Copy result places the full summary on your clipboard.

Frequently asked questions

How are stacked discounts calculated?
Sequentially. Each discount applies to the price left after the previous one. On a 50 item, 20% off leaves 40, and a further 10% comes off the 40, leaving 36. The total discount is 28%, not 30%.
Can I mix percentage and fixed-amount discounts?
Yes. Switch any discount row between a percentage and a fixed amount off, and combine both. A percentage still comes off the running price, while a fixed amount is subtracted from it. You can stack up to three discounts in any mix.
How do I find the percent off between two prices?
Switch to Percent off mode, enter the original price and the price you paid, and the tool returns the discount as a percentage plus the amount saved. If the paid price is higher than the original, there is no discount to show.
What does the effective single discount mean?
It is the one percentage that would produce the same sale price as all your discounts combined. Stacking 20% and 10% has an effective discount of 28%, and a fixed 15 off a 100 item shows as 15%, which is the number to compare against a plain one-code offer.
Does the calculator include sales tax or VAT?
No. The sale price is the discounted price before any tax. Tax rules differ by country, state, and product type, so apply your local rate to the result if you need the final checkout total.
Is anything I type uploaded?
No. Prices and discounts are processed entirely in your browser. Nothing is sent to a server, stored, or logged.

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