Discount Calculator
Calculate discounts instantly — find the savings amount and final price, or figure out what percent off a sale really is.
X% off $Y
What % off is the sale price?
Find original price from discount
About Discount Calculator
Our free Discount Calculator makes it easy to figure out sale prices, savings amounts, and discount percentages. Whether you're shopping during a sale event, calculating employee discounts, or analyzing promotional pricing, this tool provides instant and accurate results.
The calculator supports three common discount scenarios: calculating the savings and final price from a percentage discount, determining the discount percentage when you know the original and sale prices, and finding the original price when you know the final price after a discount. Each mode works independently, so you can use whichever calculation matches your needs.
All calculations happen instantly in your browser — no data is sent to any server. The tool handles decimal values and large numbers, making it suitable for everything from everyday shopping to business pricing analysis. It's especially useful during Black Friday, Cyber Monday, and other major sale events when you need to quickly evaluate deals.
Frequently Asked Questions
Q How do I calculate a discount?
To calculate a discount, multiply the original price by the discount percentage (as a decimal), then subtract that amount from the original price. For example, 25% off $80: savings = $80 × 0.25 = $20, final price = $80 - $20 = $60. Our calculator handles this automatically.
Q How do I find the original price from the sale price?
If you know the sale price and the discount percentage, divide the sale price by (1 - discount/100). For example, if an item costs $60 after a 25% discount: original = $60 ÷ 0.75 = $80. Use the third calculator mode above for this calculation.
Q How do I calculate double discounts?
For double discounts (like 20% off, then an additional 15% off), apply them sequentially — not by adding the percentages. First apply the 20% discount, then apply 15% off the already-reduced price. For example, $100 with 20% off = $80, then 15% off $80 = $68. The total discount is 32%, not 35%.