Discount Calculator
Calculate the discount amount and the final price after applying a percentage discount.
Enter price and discount rate.
What This Calculator Does
A "25% off" sign tells you the rate, but not the actual dollar amount you're saving or what you'll actually pay at the register — this calculator fills in both of those. Enter an original price and a discount percentage, and it returns the discount amount in dollars and the final price after that discount is applied.
How to Use It
Enter the Original Price and the Discount Percentage — the field accepts anything from 0% up to 100%, since a discount can't logically exceed the full price of the item. The result shows the Original Price you entered, the Discount amount (as a negative figure, since it's being subtracted), and the Final Price after the discount, in bold so it's the number that stands out.
The Formula
Discount Amount = Original Price × (Discount Percentage ÷ 100), and Final Price = Original Price − Discount Amount. Both figures round to the nearest cent using standard half-up rounding. At exactly 100% off, the discount amount equals the full original price and the final price comes out to exactly zero — the calculator handles that boundary case cleanly rather than treating it as an error.
A Worked Example
A $120.00 item at 25% off: the discount amount is $120.00 × 0.25 = $30.00, and subtracting that from the original price gives a Final Price of $90.00. That $30 saving is easy to lose track of when you're only looking at the percentage on a sign — seeing it broken out as an actual dollar figure next to the final price is the whole point of running the numbers through a calculator instead of estimating in your head.
FAQ
- How do I calculate 20% off a price?
- Enter the original price and 20 as the discount percentage. The calculator shows the discount amount and the final price.
- What is the maximum discount?
- The discount percentage can be from 0% up to 100% (free). Anything over 100% is not valid.