Free Online Tool

Discount Calculator

Find the sale price in seconds. Enter the original price and the discount percent to see what you pay and how much you save.

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How to Use

1. Enter the original price. 2. Enter the discount percent. 3. Click Calculate Discount to see the sale price and your savings.

About This Discount Calculator

A discount calculator works out the sale price of an item and how much money you save. Shops show discounts as a percentage: 20 percent off, 50 percent off, or buy one get one free. The percentage alone does not tell you the real price, so you need to do the maths. This free discount calculator does it in one second. Enter the original price and the discount percent, and it shows the final price and the amount saved, so you can decide if the deal is really worth it.

Sales are designed to make you buy, and a big percentage can hide a small saving. A 50 percent discount on a 200 item saves only 100, while a 10 percent discount on a 50,000 item saves 5,000. Knowing the real saving helps you compare deals, check whether a "sale" price is really lower than the normal price, and avoid spending money just because something looks cheap. Shop owners also use this calculation to set sale prices and work out their profit.

Discount Calculator Worked Example

Take a jacket that costs 2,000 with a 25 percent discount. The saving is 2,000 times 25 divided by 100, which is 500. The sale price is 2,000 minus 500, which is 1,500. Another example: a phone costs 80,000 with a 10 percent discount. The saving is 8,000 and you pay 72,000. Try your own numbers above, and compare the saving on a cheap item and an expensive item with the same discount percent.

Discount Formula

The discount formula is simple. Amount saved = original price times discount percent divided by 100. Sale price = original price minus amount saved. You can also work it out in one step: sale price = original price times (100 minus discount percent) divided by 100. For a 25 percent discount, you pay 75 percent of the price, so 2,000 times 75 divided by 100 is 1,500. The same formula works for any price and any discount.

Tips for Using the Discount Calculator

Compare the saving, not just the percent. A small percent on a big price can save more than a big percent on a small price. Watch for double discounts. Two discounts of 50 percent do not make an item free: the second discount applies to the already reduced price, so the total saving is 75 percent. Check the price before the sale. Some shops raise the price first and then "discount" it, so check the normal price elsewhere. Do not buy what you do not need. Saving 500 on something you would never buy is not saving money at all. Use it for bulk deals. Compare the price per item in a pack with the single item price to see if the deal is real.

Second Worked Example: A 40 Percent Sale

A jacket costs 3,500 and the shop offers 40 percent off. The discount is 3,500 times 40 divided by 100, which is 1,400, so you pay 3,500 minus 1,400, which is 2,100. Now suppose the shop offers a further 10 percent off the sale price. The second discount is 10 percent of 2,100, which is 210, so you pay 1,890 in total. Notice that 40 percent off plus 10 percent off is not 50 percent off: the two discounts multiply, they do not add.

Step-by-Step Guide: How to Use the Discount Calculator

  1. Enter the original price of the item before any discount.
  2. Enter the discount percent, for example 25 for 25 percent off.
  3. Click Calculate. The calculator shows how much you save and the price you pay.
  4. Check the savings against the shop's sign: if they do not match, ask the shop to explain.
  5. Try a different discount to compare two sales and see which one saves you more.

Common Mistakes to Avoid

Adding two discounts together. A 40 percent discount followed by a 10 percent discount is 46 percent off in total, not 50 percent, because the second discount applies to the reduced price. Forgetting tax. The discount usually applies before tax, so the final bill adds tax on top of the discounted price. Trusting a "was" price. Some shops raise the price first and then discount it, so the saving is smaller than it looks. Buying things you do not need. A 50 percent discount on something you would never buy is not a saving at all. Rounding the discount wrong. Always work out the discount from the full original price, not from a rounded number.

Pro Tip: To find the sale price fast, multiply the original price by (100 minus the discount) divided by 100. For 40 percent off, multiply by 0.6.

Note: This calculator works out the price after discount only. Sales tax, delivery charges and other fees are added separately by the shop.

Frequently Asked Questions

How do I calculate a discount price? Multiply the original price by the discount percent and divide by 100 to get the saving, then subtract it from the price. For example, 25 percent off 2,000 saves 500, so you pay 1,500.

What does 50 percent off mean? You pay half the original price. A 2,000 item at 50 percent off costs 1,000, and you save 1,000.

How do double discounts work? The second discount applies to the price after the first discount. A 50 percent discount followed by another 50 percent discount leaves you paying 25 percent of the original price, which is a 75 percent total saving.

Can a discount be more than 100 percent? No. A 100 percent discount means the item is free. A discount above 100 percent would mean the shop pays you, which does not happen in normal sales.

Does the calculator include tax? No. It works out the sale price before tax. If tax is added at the till, it will be charged on the sale price, not the original price.

Is this discount calculator free? Yes, it is completely free, with no sign-up and no limit on how many discounts you calculate.

How do I work out 40 percent off in my head? Find 10 percent by moving the decimal point one place left, then multiply by 4. For 3,500, 10 percent is 350, so 40 percent is 1,400 off.

Is "buy one get one free" the same as 50 percent off? Only if the two items cost the same. If you buy a 1,000 item and get a 600 item free, you paid 1,000 for 1,600 worth of goods, which is 37.5 percent off.

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