Discount Calculator
Enter an original price and a discount percentage to instantly see the discount amount and the final price.
How to Use This Tool
Enter the original price
Before any discount is applied.
Enter the discount percentage
The percentage being taken off.
Click "Calculate discount"
See the exact amount saved and the final price.
Use the result
Apply it to pricing, invoicing, or checking a sale price is correct.
About the Discount Calculator
Whether you're pricing a promotional offer for your own services, checking that a sale price advertised by a retailer is actually correct, or working out a client discount, calculating the exact final price after a percentage discount is a small but frequent calculation.
This tool takes an original price and a discount percentage, then calculates both the exact dollar amount being discounted and the final price after that discount is applied — useful both for setting your own discounted pricing and for verifying discounts offered to you.
It's worth noting that multiple discounts don't simply add together — a 20% discount followed by an additional 10% discount results in a combined discount of 28% off the original price, not a flat 30%, since the second discount applies to the already-reduced price.
Frequently Asked Questions
How do I calculate two discounts applied in sequence, like 20% off then an extra 10%?
Apply them one at a time rather than adding the percentages together — run the original price through this calculator with the first discount, then take that resulting price and run it through again with the second discount percentage to get the true final price.
Why don't two sequential discounts just add up to their sum?
Because the second discount is calculated based on the already-discounted price, not the original price — a 20% discount followed by a 10% discount results in a combined 28% total discount, not a flat 30%, since 10% of a smaller number is a smaller amount.
Can I use this to figure out what discount percentage was applied, if I know the original and sale price?
Not directly with this version — this calculator works forward from price and percentage to find the discounted result. To find the percentage discount between two known prices, you could instead use the "X is what % of Y" mode on the Percentage Calculator with the difference and original price.
Does this work for calculating a markup instead of a discount?
This specific tool is built for calculating discounts (price reductions). For a markup (price increase), the Percentage Calculator's "what is X% of Y" mode combined with simple addition to the original price would give you the equivalent result.
Is this useful for calculating sales tax as well?
While this tool is designed for discounts, the same underlying percentage-of-a-number math applies to tax calculations too — you'd just add the calculated percentage amount to the original price instead of subtracting it, which the Percentage Calculator's first mode can help with directly.
What if I need to apply a discount to multiple items with different prices?
Run each item's price through the calculator individually to get an accurate discounted price for each, since the dollar amount discounted will differ based on each item's original price even at the same discount percentage.