In short: Discount Calculator finds the sale price after a percentage or fixed discount, including stacked coupons and sales tax, and shows exactly how much you save.
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How to use Discount Calculator
3 quick steps. Most people are done in under a minute.
- 1
Enter the original price.
- 2
Add the discount, plus any extra coupon or sales tax.
- 3
See the final price and how much you save.
Discount Calculator features
- Percent off or amount off
- Stack an extra coupon on top of a sale
- Add sales tax after discounts
- Shows the true combined discount
When to use Discount Calculator
- Check the real price during sales and Black Friday
- Compare deals between shops
- Work out prices for your own promotions
About this tool
Work out the final price after a percentage or fixed discount, add an extra coupon on top, and include sales tax. See exactly how much you save and the true combined discount.
Discount Calculator FAQ
How do I calculate a discount?
Multiply the price by (1 − discount ÷ 100). For example, 25% off $80 is $80 × 0.75 = $60, so you save $20.
Is 20% off plus 10% off the same as 30% off?
No. Stacked discounts multiply: 20% then 10% off leaves 0.8 × 0.9 = 0.72 of the price, which is a 28% total discount.
Is sales tax applied before or after the discount?
Usually after. The calculator applies tax to the discounted price, which is how most shops charge it.
Helpful guides
- How to Calculate Percentages: 4 Formulas Everyone NeedsFind X% of a number, what percent one number is of another, percentage increase or decrease, and how to add or remove a percentage, with simple examples.
- How to Add or Remove VAT, GST or Sales Tax from a PriceThe correct formulas to add tax to a price or work backwards from a tax-inclusive total, with examples for 20% VAT, 18% GST and US sales tax.