Discount Calculator: Sale Price and Percent Off
Our discount calculator finds the sale price and your savings from any percent off. It also stacks two discounts, works out the percent off from two prices and handles coupons for a fixed amount. Add your sales tax to see the price you will pay at the till.
What a Discount Is
A discount is a cut in the normal price of a product or service. Stores show it as a percent off, such as 25% off, or as a fixed amount, such as $15 off. Either way, the question is the same: how much will you pay and how much will you save?
Percentages can be hard to judge in your head, especially when more than one discount applies. A discount calculator turns the sign in the shop window into a clear price. It also helps you compare two offers.
How to Use the Discount Calculator
- Choose what you want to find from the four modes.
- Enter the original price and the discount, the sale price or the amount off.
- Add a sales tax rate if you want the final price at checkout.
The results show the sale price, the amount you save and the total discount as a percentage. The formula used appears under the results, so you can check every step. Switch modes of the percent off calculator at any time and your original price stays.
How to Calculate a Discount
To find the sale price, multiply the original price by the discount and subtract that from the original. A $80 jacket with 25% off has a discount of 80 × 25 ÷ 100 = $20, so the sale price is $60. You can also multiply by what is left: 80 × 0.75 = $60.
How to Calculate Discount Percentage
To work backward from two prices, subtract the sale price from the original, divide by the original and multiply by 100. A shirt marked down from $79.99 to $59.99 is (79.99 − 59.99) ÷ 79.99 × 100 = 25% off. The percent off calculator mode does this for you, which helps when a store shows only the old and new prices.
Discount Calculator Examples
A Simple Percent Off
A pair of shoes costs $80 and the sign says 25% off. The discount calculator shows a sale price of $60.00 and a saving of $20.00. With 8.25% sales tax the price at the till is $64.95.
Stacked Discounts
A store offers 20% off, and you have a coupon for an extra 10%. On a $120 item, the price becomes $96 after the first discount and $86.40 after the second. That is a total discount of 28%, not 30%, because the second discount applies to the lower price.
A Coupon for a Fixed Amount
The percent off calculator shows that a $15 coupon on an $80 order brings the price to $65.00. In percent terms, that is 18.75% off. Fixed coupons are worth more on cheaper items, while percent coupons win on expensive ones.
Why Two Discounts Do Not Add Up
A double discount is common during big sales. The store takes the first discount, then applies the second to the reduced price. The result is always smaller than adding the two percentages together.
| First discount | Second discount | Total discount |
| 20% | 10% | 28% |
| 30% | 20% | 44% |
| 40% | 25% | 55% |
| 50% | 50% | 75% |
Use the stacked mode of the percent off calculator to check any pair. It also shows the single discount that would give the same price. That makes it easy to compare a stacked deal with a single bigger discount from another store.
Percent Off vs Amount Off
Stores choose the format that looks better for the price. On a $20 item, $5 off sounds better than 25% off, even though they are the same. On a $400 item, 25% off sounds far better than $100 off.
Turn both offers into the same unit with a percent off calculator before you decide. The discount calculator shows the amount saved and the percentage side by side. Pick the one that leaves more money in your pocket, not the one with the bigger number on the sign.
Buy One Get One Deals
A buy one get one free offer on two $30 items means you pay $30 for $60 worth of goods, which is 50% off each item. A half off second item deal is weaker than it sounds. You pay $45 for two $30 items, which works out to only 25% off the pair.
These deals only save money if you wanted both items. Otherwise you simply spend more for nothing. Divide what you pay by the number of items to see the real price of each.
Smart Shopping Tips
- Check the price history, since some stores raise prices before a sale.
- Compare the final price with tax and shipping, not the discount alone.
- Read coupon rules about minimum spend and excluded brands.
- Watch out for a double discount that applies only to selected items.
A big percentage is only a good deal if the starting price was fair. Track the price for a few weeks and run it through a percent off calculator. A real bargain is a low final price, not a large number on a sign.
Discounts for Sellers
Shop owners can use the same math to plan a sale. Cutting the price by 20% on a product with a 40% margin halves the profit on each sale. You would need to sell twice as many units just to earn the same amount.
Check your numbers with our Margin Calculator before you set a sale price. A percent off calculator shows the customer side, while the margin shows what you keep. Both matter when you plan a promotion.
Why Use Our Discount Calculator
It covers percent off, stacked discounts, amount off coupons and reverse discounts in one place, with optional sales tax. Every result shows the formula behind it. It runs in your browser with no sign up. Enter a price and check your deal now.
Frequently asked questions
Is this discount calculator free?
Yes, it is free with no sign up and no limit.
How to calculate discount percentage from two prices?
Subtract the sale price from the original, divide by the original and multiply by 100.
Is 20% off and then 10% off the same as 30% off?
No, it equals 28% off, because the second discount applies to the lower price.
Does the percent off calculator include tax?
Yes, enter a tax rate to see the final price.
What does the percent off calculator show for 25% off $80?
The discount is $20, so the sale price is $60.
Is a free second item the same as 50% off?
Yes, if you wanted both items, since each one costs half price.
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