Discount Calculator
Calculate discounts, sale prices, and savings instantly. Compare multiple discounts and find the best deal.
About Discount Calculator
Our Discount Calculator is a powerful tool that helps you quickly determine the final price after applying one or more discounts to an original price. Whether you're shopping during a sale season, comparing deals, or calculating business pricing, this tool provides accurate results instantly.
The calculator supports two types of discounts: Percentage Discount (e.g., 20% off) and Fixed Amount Discount (e.g., $10 off). You can also apply multiple stacked discounts to see how successive percentage reductions affect the final price - a common scenario during promotional events where stores offer additional markdowns on already reduced items.
Beyond simple calculations, the tool provides detailed breakdowns showing the total discount amount, total discount percentage, and savings for each discount applied. This helps you understand exactly how much you're saving and compare deals effectively.
Calculate Discount
Compare Prices: Single vs Multiple Discounts
Enter an original price to see how different discount combinations compare.
Reverse Discount Calculator
Know the sale price and discount? Find the original price before the discount was applied.
How to Use
Enter the Original Price
Type the original or list price of the item in the "Original Price" field. This is the price before any discounts are applied. The input accepts any positive number including decimals.
Add Discount(s)
Enter the discount value and select the type. Choose "% Off" for percentage discounts (e.g., 20% off) or "Fixed Amount" for flat dollar discounts (e.g., $10 off). Click "Add Another Discount" to apply multiple stacked discounts - the calculator will apply them sequentially.
Enter Tax Rate (Optional)
If you want to calculate the final price including sales tax, enter the applicable tax rate as a percentage. This is useful for knowing the total amount you'll pay at checkout. Leave it as 0 if you only need the pre-tax price.
View Results
Click "Calculate" to see detailed results including the final price, total discount amount, total discount percentage, tax amount, and your total savings. Each discount is shown individually with its specific savings amount.
Discount Formulas
Single Percentage Discount
Discount Amount = Original Price × (Discount % / 100)
Final Price = Original Price - Discount Amount
Single Fixed Amount Discount
Final Price = Original Price - Fixed Discount Amount
Multiple Stacked Discounts
Price is reduced sequentially after each discount
Total Discount % = (1 - Final Price / Original Price) × 100
Reverse: Find Original Price
Original Price = Sale Price / (1 - Discount % / 100)
Common Discount Scenarios
Quick reference for popular discount calculations:
Half Price (50% Off)
Original $100 → $50 (Save $50)
Original $200 → $100 (Save $100)
Original $75 → $37.50 (Save $37.50)
20% Off
Original $100 → $80 (Save $20)
Original $250 → $200 (Save $50)
Original $50 → $40 (Save $10)
Buy One Get One (BOGO)
Effectively 50% off each item when buying 2
Original $100 × 2 → $100 total ($50 each)
20% + Extra 10% Off
Original $100 → $80 → $72
Not 30% off! Total discount is 28%
25% Off Storewide
Original $80 → $60 (Save $20)
Original $160 → $120 (Save $40)
$10 Off $50+
Original $50 → $40 (Save $10)
This is effectively 20% off at $50
Frequently Asked Questions
How do I calculate a percentage discount?
To calculate a percentage discount, multiply the original price by the discount percentage and divide by 100. Then subtract this discount amount from the original price. For example, for 25% off a $200 item: Discount = $200 × 25/100 = $50. Final Price = $200 - $50 = $150.
How do stacked discounts work?
Stacked (or successive) discounts are applied one after another, each to the reduced price from the previous discount. For example, 20% + 10% on $100 is NOT the same as 30% off. Instead: First 20% off: $100 - $20 = $80. Then 10% off: $80 - $8 = $72. The effective total discount is 28%, not 30%. This is because each subsequent discount applies to a smaller base amount.
What's the difference between percentage and fixed discounts?
A percentage discount (e.g., 20% off) reduces the price by a proportion of the current amount. The savings increase with higher-priced items. A fixed amount discount (e.g., $10 off) reduces the price by a set dollar amount regardless of the item's price. Fixed discounts give a better percentage on cheaper items, while percentage discounts give greater absolute savings on expensive items.
How do I find the original price from the sale price?
To find the original price, divide the sale price by (1 - discount percentage/100). For example, if an item costs $80 after a 20% discount: Original Price = $80 / (1 - 20/100) = $80 / 0.8 = $100. You can use the "Reverse Discount Calculator" section above to do this calculation instantly.
Is 20% + 10% the same as 30% off?
No! This is a common misconception. When discounts are stacked, each applies to the already-reduced price. For a $100 item: 20% + 10% gives $100 → $80 → $72 (28% total). While a flat 30% off gives $100 → $70 (30% total). The 30% flat discount saves you $2 more. Always compare the final prices, not just the percentages.
Can I use this calculator for business pricing?
Yes! This calculator is suitable for both personal shopping and business use. It's helpful for calculating wholesale prices with trade discounts, determining markup after supplier discounts, setting promotional pricing, and comparing vendor offers. The optional tax rate feature also lets you calculate the final customer price including applicable sales tax.
How is the total discount percentage calculated for multiple discounts?
The total discount percentage is calculated by comparing the final price to the original price: Total Discount % = (1 - Final Price / Original Price) × 100. This represents the effective overall discount, which is always less than the simple sum of individual percentage discounts when multiple discounts are stacked.
Is this Discount Calculator free to use?
Absolutely! Our Discount Calculator is completely free to use, with no registration or sign-up required. All calculations are performed locally in your browser, so your data stays private. We provide high-quality, accessible tools for shoppers and professionals alike.