Discount Calculator

Find the sale price, the amount saved and the real discount.

Discount Calculator

Fast online calculation engine

Amount / Value 1

Rate / Percentage / Value 2

Tenure / Value 3

Output ResultSavings: 10000.00 | Final: 90000.00

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What does Discount Calculator do?

Enter a price and a discount to see what you actually pay and what you save. It also works backwards — enter the original and sale prices to find the discount percentage — and handles stacked discounts, which almost never add up the way shops imply.

How to Use Discount Calculator

1
Enter the original priceThe price before any reduction.
2
Enter the discountType the percentage off, or switch to the reverse mode.
3
Add extra discounts if anyStacked offers are applied one after another.
4
Read the resultYou get the price to pay, the saving and the effective discount.

Key Features

Final price and money saved from any percentage discount
Reverse mode: work out the discount percentage from two prices
Stacked discounts calculated correctly (30% then 20% is 44%, not 50%)
Optional tax applied after the discount, the way checkouts do it
Recover the original price when only the sale price and discount are known

Frequently Asked Questions

How do I calculate a 20% discount?

Multiply the price by 0.80. A £45 item at 20% off costs £36, saving £9. In general, multiply by (100 − discount) ÷ 100.

Is "30% off then 20% off" the same as 50% off?

No, and this is the most common shopping mistake. The second discount applies to the already-reduced price, giving 0.7 × 0.8 = 0.56, so you pay 56% — a 44% discount overall.

How do I find the original price from a sale price?

Divide the sale price by (100 − discount) ÷ 100. A £36 item at 20% off started at 36 ÷ 0.8 = £45. Switch the calculator to reverse mode to do this automatically.

Is the discount applied before or after tax?

In almost every jurisdiction the discount comes first and tax is charged on the reduced price. The calculator follows that order and shows both subtotals.

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