Discount Calculator
This discount calculator takes an original price and a percentage or fixed-amount discount and returns the final price, the amount saved and the effective percent off, updating as you type.
Price after a discount.
How to use Discount Calculator
- Enter the original price of the item
- Pick a percentage or fixed-dollar discount and type it
- Read your savings, final price, and effective percent off
About Discount Calculator
The Discount Calculator turns any sale into three numbers: how much you save, the final price you pay, and the effective percent off. Enter the original price, choose whether the markdown is a percentage or a fixed dollar amount, and type the discount — the result grid updates in clean US currency the moment both boxes are filled. A percentage like 30% and a flat cut like $15 off are handled the same way, so it works as a percent-off calculator and a dollar-off calculator at once.
It is built for everyday shopping math rather than finance. When you enter a fixed amount, it still reports the effective percent off, so you can see that $15 off an $80 shirt is really 18.75% off. Negative inputs are blocked, and a discount larger than the price is capped so the total lands at $0.00 instead of going negative, with a note explaining the cap. It does not compute present-value discounting, mortgage discount points, or tire sizes — it is a straight sale-price and savings tool, and it is not affiliated with any Discount Tire store.
Use it to check a storefront's claimed markdown, work out what a coupon is really worth, or compare two offers before you buy. Everything runs entirely in your browser, so nothing you type is uploaded, logged, or stored anywhere.
Frequently asked questions
- How do I calculate a percentage off a price?
- Type the original price, leave the mode on percentage, and enter the percent — say 30. The tool multiplies the price by that percent to get your savings and subtracts it for the final price, so 30% off a $50 item saves $15 and costs $35.
- How much is my discount actually worth?
- The Savings figure is the dollar value of the discount — the gap between the original and final price. Whether you enter a percentage or a flat amount, that number is exactly what the deal takes off, and the Percent off figure expresses the same saving as a share of the original price.
- What does the Percent off figure mean when I use a fixed amount?
- It is the effective discount: the amount saved divided by the original price, shown to at most two decimals. Taking $15 off an $80 item reports 18.75% off.
- How do I apply two discounts, like 20% off then a further 10%?
- Run the tool twice: apply the first discount, then put the resulting final price into the Original price box and apply the second. Stacked percentages do not simply add — 20% then 10% off $100 leaves $72, which is 28% off, not 30%.
- What happens if the discount is bigger than the price?
- Percentages are capped at 100% and fixed amounts are capped at the original price, so the final price stops at $0.00 and never goes negative. A note appears under the results explaining that the cap was applied.
- Can I work backwards from a sale price to the original price?
- Not in this tool — it only calculates forwards. Divide the sale price by 1 minus the discount as a decimal: a $60 item after 25% off was $80 before the sale.
- Does it add sales tax, GST or VAT?
- No, it deals only with the discount. If you need tax on top of the sale price, take the final price across to the GST/VAT calculator on this site, which can add or remove tax at any rate.
- It shows dollars — can I use it for other currencies?
- The arithmetic is currency-neutral; only the $ symbol and US-style number formatting are fixed. The savings and final price are correct for pounds, euros or rupees — just read the symbol as your own currency.
- How are the results rounded?
- Money is shown to two decimal places and the percent-off figure to at most two. If the original price is 0 the percent off shows a dash, because a saving cannot be expressed as a share of nothing.
- Why is nothing showing yet?
- Both boxes are needed. With only the price or only the discount filled in, the results stay hidden and a prompt tells you what is missing; a negative number in either box shows an error instead.
- Can this work as a present value or discount-rate calculator?
- No. This finds the value of a price discount, not the present value of future money. Discounting a cash flow by an interest rate over time is a different calculation, so a dedicated present-value or NPV tool is the right choice for that.
- Does this calculate mortgage discount points?
- No. Mortgage discount points are prepaid interest that buys down a loan's rate, which depends on the loan amount and lender terms. This tool only takes a percentage or dollar amount off a single price, so use a mortgage discount point calculator for that.
- Is this the Discount Tire size calculator?
- No, this is a general percent-off and dollar-off price calculator, and it is not connected to the Discount Tire retailer or its tire-size tools. You can still use it to work out the sale price on a set of tires once you know the original price and the markdown.