Never overpay during sales again. Our free discount calculator helps you calculate exact savings on percentage-off deals, compare different discounts to find the best deal, and stack multiple promotions like Black Friday sales plus coupon codes. Whether you're shopping in-store or online, get the math right in seconds. Use this calculator to find the final price after any discount, see exactly how much you save, and compare whether percentage-off or dollar-off deals give you better value. Perfect for Black Friday shopping, clearance sales, online promo codes, and everyday deal hunting. Enter your original price and discount percentage to see your savings instantly.
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Type in the full retail price before any discount.
Enter the discount as a percentage or a fixed dollar amount.
Enter a tax rate to see the final price including tax.
See the sale price, savings amount, and savings percentage.
The formula for calculating a percentage discount is simple: Discount Amount = Original Price × (Discount Percentage ÷ 100), then Final Price = Original Price - Discount Amount. For example, 25% off $80 means $80 × 0.25 = $20 savings, so you pay $60. Common discounts like 10% off, 25% off, and 50% off can add up to significant savings on large purchases.
To find which discount saves more, calculate the actual dollar amounts. The breakeven formula is: Breakeven Price = Fixed Discount ÷ (Percentage ÷ 100). For example, comparing 30% off vs $25 off: $25 ÷ 0.30 = $83.33 breakeven. Below $83.33, the $25 off is better; above $83.33, the 30% off is better.
Discounts apply serially, not by adding percentages. 20% off + 15% off does NOT equal 35% off. The correct method: Apply first discount (20% off $100 = $80), then apply second discount to the new price (15% off $80 = $68). The effective discount is 32%, not 35%. The order doesn't matter for percentage discounts.
James is shopping for headphones and found the same model at two stores. Store A offers 25% off the $80 price, Store B offers $15 off. - Store A: $80 × 0.25 = $20 off, pay $60 - Store B: $80 - $15 = $65 - Result: Store A saves $5 more (25% off is better at this price point) The breakeven for this comparison is $60 ($15 ÷ 0.25). Since the item costs $80 (above breakeven), the percentage discount wins.
Sophie found a $200 laptop during Black Friday. The store offers 30% off, her email coupon gives 10% more, and her credit card gives 5% cashback. - Step 1: $200 × 0.70 = $140 (30% off) - Step 2: $140 × 0.90 = $126 (additional 10% off) - Step 3: $126 × 0.95 = $119.70 (5% cashback) - Result: Final price $119.70, total savings $80.30 (40.15% effective discount) Notice the effective discount is 40.15%, not 45% (30+10+5). Stacked discounts apply sequentially, each reducing the remaining amount.
A clearance item shows "Now $45 after 40% off!" David wants to know the original price. - Sale Price: $45.00 - Discount: 40% off - Formula: Original = Sale Price ÷ (1 - Discount%) - Result: $45 ÷ 0.60 = $75.00 original price When you only see the sale price, divide by (1 minus the discount as a decimal) to find what it originally cost.
Multiply the original price by the discount percentage (as a decimal), then subtract from the original. For example, 25% off $80: $80 × 0.25 = $20 discount, final price = $80 - $20 = $60. Or simply multiply by (1 - discount): $80 × 0.75 = $60.
