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Discount Calculator
Calculate sale prices, savings, and discount percentages instantly. Perfect for shopping, retail pricing, and business calculations. Free, no sign-up needed.
Quick discount:
How to Use the Discount Calculator
1
Choose calculation mode
"% Off → Price" finds sale price. "Find % Discount" finds what % off was applied. "Price with Tax" adds sales tax.
2
Enter your numbers
Type the original price and discount percentage. Results update instantly as you type — no button needed.
3
See savings instantly
The sale price, amount saved, and discount percentage are all shown clearly in the results panel.
Discount Calculator — FAQs
How do I calculate 20% off $80?
20% off $80 = $80 × (1 - 0.20) = $64. You save $16. Enter $80 as Original Price and 20 as Discount % above to see this instantly.
How do I find what percentage discount was applied?
Switch to "Find % Discount" mode. Enter the original price and the sale price. The calculator shows the discount percentage: Discount % = ((Original - Sale) ÷ Original) × 100.
How do I calculate price after tax?
Switch to "Price with Tax" mode. Enter the price and tax rate. Final price = Original × (1 + Tax% ÷ 100). For example, $50 + 8% tax = $54.