SHOPPING CALCULATOR
Discount Calculator
Calculate sale price, savings, and the true combined rate for stacked discounts.
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How discount calculation works
Enter the original price and discount. Add a second discount when a coupon applies after the first sale.
Formula: price × (1 − discount ÷ 100) × (1 − extra discount ÷ 100)
Privacy: Browser-only calculation. Values are not uploaded.
FAQ
FAQ
How do I calculate 20% off?
Multiply the original price by 0.8 to get the sale price.
Is 20% off plus 10% off equal to 30%?
No. The discounts apply in sequence, producing an effective discount of 28%.
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