This discount calculator tells you exactly what you will pay in a sale. Enter the original price and the percent off to see the sale price and how much you save. If the shop offers an extra discount on top, such as 25% off plus another 10% at checkout, add it and the calculator shows the real combined discount.
Two more modes work backwards: find the original price from a sale price and its discount, or find the percent off when you know both prices. Use it when shopping, comparing deals, setting sale prices for your own store or checking a receipt.
How to use the Discount Calculator tool
- Choose a mode: Find sale price, Find original price or Find % off.
- Enter the prices you know and the discount percentage, or tap a quick % button.
- Optionally add an extra % off to stack two discounts.
- Read the result, your savings and the formula used.
Why use ToolOrca Discount Calculator
- Sale price and amount saved
- Stacked (extra) discounts done correctly
- Original price from a sale price
- Percent off from two prices
- Quick buttons for common discounts
- Any currency symbol
Discount formulas with examples
Sale price = original × (1 − discount ÷ 100). An $80 jacket at 25% off costs 80 × 0.75 = $60, saving $20.
Stacked discounts multiply, they do not add. 25% off and then an extra 10% off: 80 × 0.75 × 0.90 = $54. That is a total discount of 32.5%, not 35%.
Original price = sale price ÷ (1 − discount ÷ 100). If a $60 item is marked 25% off, the original was 60 ÷ 0.75 = $80.
Percent off = (original − sale) ÷ original × 100. A price cut from $120 to $90 is 30 ÷ 120 × 100 = 25% off.
Frequently asked questions
How do I calculate 20% off a price?
Multiply the price by 0.8. For example, 20% off $45 is 45 × 0.8 = $36, a saving of $9.
Is 50% off plus 20% off the same as 70% off?
No. 50% off and then 20% off leaves 0.5 × 0.8 = 0.4 of the price, which is 60% off in total. A $100 item would cost $40, not $30.
How do I find the original price before a discount?
Divide the sale price by 1 minus the discount. A $34 item at 15% off was originally 34 ÷ 0.85 = $40.
What percent off is $30 off $150?
30 ÷ 150 × 100 = 20% off.
Is sales tax included?
No. Discounts are applied to the price before tax. Use the sales tax calculator to add tax to the sale price.