Discount Calculator
Calculate discounted price, amount saved, and final price after any percentage off. Free and instant.
Formula
Sale Price = Original × (1 − Discount% ÷ 100)
Sale price equals the original price multiplied by (1 minus the discount rate divided by 100). For example, a 30% discount means you pay 70% of the original.
Find the sale price after a percentage discount, or work backwards to find what discount percentage you received. Useful for shopping, pricing decisions, and comparing deals.
How to use it
Enter the original price and the discount percentage to see the final price and how much you save. Or enter the original and sale price to calculate the discount percentage — handy when a tag says "was $80, now $52" and you want to know the actual percentage off.
Stacked discounts
When two discounts are applied one after the other (e.g., 20% off, then an extra 10% off), they don't simply add up to 30%. A $100 item at 20% off becomes $80, then 10% off that is $72 — a total discount of 28%, not 30%. This calculator handles single discounts; for stacked discounts, run it twice.
Common uses
- Black Friday / sale season — quickly check if a "deal" is actually good
- Coupons — calculate the final price before checkout
- Business pricing — set a sale price that hits a specific margin
Frequently Asked Questions
How do I calculate the final price after a percentage discount?
Multiply the original price by (1 − discount% / 100). For example, a 25% discount on $80 gives $80 × 0.75 = $60.
Can I calculate stacked discounts (discount on a discount)?
Yes — apply each discount sequentially. A 20% then 10% discount is NOT 30%; it's $100 × 0.80 × 0.90 = $72, a total saving of 28%.
How to Calculate Discounts and Final Sale Prices