Discount Calculator
See the price you actually pay after a discount — and exactly how much you save.
Final price and savings
Enter the original price and the discount percentage to get the price you pay and the amount that comes off.
One discount at a time
Two discounts do not add up — 20% then 10% is not 30% off, because the second is taken from the already-reduced price.
What is a discount calculator?
From sticker price to what you pay
A discount calculator turns a "percent off" sign into the two numbers that actually matter: the final price you pay and the amount you save. It applies a single percentage discount to an original price, so a 20% reduction on a 100 item and a 20% reduction on a 1,000 item are both handled by the same rule. That makes it the quick way to check sale prices, compare offers, and confirm the till total before you buy.
Enter the original price and the discount percentage to get the final price and the savings.
Multiply the price by the discount as a fraction to get the savings, then take that off the price.
Final price = price × (1 − discount ÷ 100)The discount percentage is first divided by 100 to turn it into a fraction, so 20% becomes 0.20. The savings are the price multiplied by that fraction, and the final price is simply the price minus the savings. Both figures are shown side by side so you can see what you pay and what you keep in your pocket.
Suppose an item is priced at 100 and is reduced by 20%.
Turn the percent into a fraction
20 ÷ 100 = 0.20.
Find the savings
100 × 0.20 = 20, the amount that comes off.
Take it off the price
100 − 20 = 80, the final price you pay.
The final price is what you hand over at the till, and the savings are how much the discount removed from the original. Reading both together keeps an offer honest: a large percentage on a small price can save less than a small percentage on a large one. Take care with stacked offers — two discounts are multiplicative, not additive, so 20% and then a further 10% is 28% off, not 30%, because the second cut is taken from the already-reduced price. When you need to compare deals, the savings figure is usually the fairer measure of which one actually puts more back in your pocket.
The arithmetic is exact, but a couple of cases need care.
Tax and single discounts
The calculator works on the price you enter and does not add or remove sales tax or VAT — add that separately if you need the till total. It also applies a single discount at a time: to model two offers, run the result through the calculator again rather than adding the percentages together.