What is Discount Calculator?
A discount calculator helps you find the final sale price after applying a percentage discount. Enter the original price and the discount percentage (like 20% off), and the tool instantly shows the sale price and how much money you save. It can also work in reverse — enter the original and sale price to find the discount percentage.
Best for
- Checking sale prices while shopping
- Pricing products and promotions
- Comparing deals quickly
- Calculating percent off for Black Friday and sales
Privacy
All math runs locally in your browser. No prices are stored or transmitted.
Quick tips
- Stacked discounts apply one after another, not added together — 20% then 10% off is not 30% off.
- Use the reverse mode to check whether an advertised "% off" matches the actual sale price.
How to use this tool
- Enter the original price and the discount percentage to see the sale price and savings.
- Or enter an original and a sale price to find the discount percentage.
- Switch the currency to match where you are shopping.
Common questions
Does this include sales tax?
No. It calculates the discount only. Add tax separately if you need the final checkout total.
Can the discount be more than 100%?
Discounts are capped at 0% and above. A 100% discount makes the item free.
How do I calculate 20% off a price?
Multiply the original price by 0.20 to find the discount amount, then subtract it from the original price. Or simply enter the original price and 20% in the calculator and get the sale price instantly.
Can I calculate stacked or multiple discounts?
Stacked discounts apply one after another. For example, 20% then 10% off equals 28% total discount, not 30%. Enter each discount separately and apply them in sequence for the correct final price.
Is the discount calculator accurate?
Yes. All calculations use standard percentage math and run locally in your browser. The results are as accurate as any calculator.
Can I use different currencies?
Yes. Switch the currency symbol to match your region. The calculation logic stays the same regardless of currency.