Percentage Off Calculator
Calculate discount amounts, final sale prices, and total savings for any percentage off. Perfect for sales, promotions, and shopping deals.
Percentage Off Calculator
Calculate discount amounts and final sale prices instantly
Enter the original price before discount
Enter the discount percentage (0-100)
Discount Result
Percentage Off Calculation
Enter the original price and discount percentage, then click Calculate Discount to see your savings.
Common Discount Examples
Quick reference showing final prices for common discount percentages. Enter your price above to see personalised calculations.
| Original Price | 10% Off | 20% Off | 25% Off | 50% Off |
|---|---|---|---|---|
| £50 | £45.00 | £40.00 | £37.50 | £25.00 |
| £100 | £90.00 | £80.00 | £75.00 | £50.00 |
| £200 | £180.00 | £160.00 | £150.00 | £100.00 |
| £500 | £450.00 | £400.00 | £375.00 | £250.00 |
| £1,000 | £900.00 | £800.00 | £750.00 | £500.00 |
Percentage Off Calculator FAQ
Everything you need to know about calculating discounts, sale prices, and savings.
To calculate percentage off, multiply the original price by the discount percentage (as a decimal), then subtract that amount from the original price. For example, if an item costs £100 and is 20% off: £100 × 0.20 = £20 discount. Final price: £100 – £20 = £80. The formula is: Final Price = Original Price × (1 – Discount % / 100).
20% off £100 is £80. You calculate this by finding 20% of £100 (which is £20) and subtracting it from the original price: £100 – £20 = £80. So you save £20 and pay £80 for the item.
To find 30% off any price, multiply the original price by 0.30 to get the discount amount, then subtract that from the original price. For example, 30% off £50 is £15 off, making the final price £35. The formula is: Discount = Original Price × 0.30, Final Price = Original Price – Discount.
The formula for calculating sale price is: Sale Price = Original Price × (1 – Discount Percentage / 100). Alternatively, you can calculate it in two steps: First, find the discount amount by multiplying Original Price × (Discount % / 100). Then subtract the discount from the original price: Sale Price = Original Price – Discount Amount.
To calculate a 25% discount, multiply the original price by 0.25 to find the discount amount, then subtract it from the original price. For example, if an item costs £80: £80 × 0.25 = £20 discount. Final price: £80 – £20 = £60. You can also multiply the original price by 0.75 directly to get the sale price.
Yes, 50% off is exactly half price. When an item is 50% off, you pay exactly half of the original price. For example, if an item originally costs £100, 50% off means you pay £50. The discount amount is £50, which is half of the original price.
To calculate multiple discounts (like 20% off then an extra 10% off), apply each discount sequentially. First, calculate the price after the first discount. Then apply the second discount to that new price. For example, £100 with 20% off = £80. Then 10% off £80 = £72. Note: This is NOT the same as 30% off the original price, which would be £70.
Percentage off refers to the amount you subtract from the original price (the discount), while percentage of refers to what you pay after the discount. For example, 20% off means you subtract 20% from the price and pay 80% of the original. So 20% off £100 means you save £20 (20% of £100) and pay £80 (80% of £100).