Discount Calculator — Calculate Sale Price and Savings
Our Discount Calculator makes it easy to figure out the final price after any discount. Whether you're shopping during Black Friday, using a coupon code, or taking advantage of a clearance sale, this tool instantly shows you the sale price and exactly how much money you're saving. No more mental math or guesswork at the register.
Simply enter the original price and discount percentage to see your savings instantly. Choose from common discount percentages or enter a custom value. The calculator also supports multiple quantities, so you can see the total cost when buying several discounted items.
The Discount Formula
How to Use the Discount Calculator
- Enter the original priceType the full price of the item before any discounts are applied.
- Select or enter the discount percentageChoose from common percentages (10%, 20%, 30%, 50%) or click "Custom" for your own value.
- Set the quantityIf buying multiple items, enter the quantity to see the total discounted price.
- View results instantlyThe sale price, savings, and total update in real-time as you type.
Frequently Asked Questions
Multiply the original price by the discount percentage (as a decimal). For a 25% discount on $80: $80 × 0.25 = $20 discount. Subtract from original: $80 - $20 = $60 sale price. Or multiply by (1 - discount): $80 × 0.75 = $60.
Yes, but discounts are applied sequentially, not additively. A 20% + 10% discount doesn't equal 30% off. First, 20% off reduces the price to 80%, then 10% off that reduces it to 72% of the original — a total effective discount of 28%, not 30%.
Divide the sale price by (1 - discount as decimal). If something costs $60 after 25% off: Original = $60 / (1 - 0.25) = $60 / 0.75 = $80. This is useful for verifying that a "discount" is actually a good deal.
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