Discount Calculator
Calculate discounts, sale prices, and savings instantly.
By Syed Mubashir Ali · Last updated
Estimates only — not financial advice. Figures are calculated in your browser from the rates shown and may differ from your bank, lender or tax authority. Check important numbers before acting on them.
How to Use Discount Calculator
- 1In 'Discount Amount', enter the original price and the percentage off to see the discount, the sale price and what you save. For a coupon like '$15 off', switch to 'Amount off' to see the sale price and what percentage that really is.
- 2In 'What % Off?', enter the original and sale prices to find the percentage discount a shop is really giving.
- 3In 'Stacked Discounts', enter a price and up to three discounts applied one after another, such as 20% off plus an extra 10% at checkout.
- 4Read the final price, total saved and the real total percentage off.
- 5Copy or share the result with the buttons under each panel.
Frequently Asked Questions
How do I work out a percentage discount?
Multiply the price by the percentage and divide by 100. 25% off $80 is 80 × 25 ÷ 100 = $20, so you pay $60. The calculator shows the discount, the sale price and your saving.
How do I find what percentage off a sale price is?
Subtract the sale price from the original, divide by the original and multiply by 100. A jacket reduced from £120 to £84 is (120 − 84) ÷ 120 × 100 = 30% off.
Is 20% off then 10% off the same as 30% off?
No. Stacked discounts multiply rather than add: the second discount is taken from the already-reduced price. 20% off $100 is $80, and 10% off that is $72, so the total is 28% off, not 30%. Three discounts of 10% give 27.1% off, not 30%.
Does the order of stacked discounts matter?
No. 20% then 10% gives the same final price as 10% then 20%, because the percentages multiply. What does matter is whether a fixed amount off (say $10) comes before or after a percentage. The stacked panel takes percentages only, so for a mix, work out the first step with 'Amount off' in the top panel and enter the result as the price.
How do I work out a fixed amount off, like $15 off $60?
Switch the top panel to 'Amount off' and enter the price and the amount. $15 off $60 leaves $45, which is 25% off. An amount bigger than the price would make the item free, and the calculator says so rather than showing a negative price.
Is sales tax or VAT included?
The calculator works on whatever price you enter. In the US, sales tax is usually added at the till, so it's charged on the discounted price. In the UK and Europe, shelf prices already include VAT, so the sale price you see is what you pay.
How much is 15% off $59.99?
15% of $59.99 is $9.00 (rounded), so the sale price is $50.99. Enter any price and percentage to check a deal in your own currency.
About Discount Calculator
The Discount Calculator answers the three questions you have when shopping a sale: how much will I pay, what percentage off is this really, and what happens when discounts are stacked. Each has its own panel with live results.
Stacked discounts are where shoppers and even shop signs get it wrong. '20% off, plus an extra 10%' sounds like 30% but is really 28%, because the second discount comes off a lower price. Enter up to three discounts and the calculator shows the true total percentage and final price.
It's also useful for sellers: price a promotion, check the margin left after a discount, or work out the percentage to advertise from an original and sale price. Everything runs in your browser.