Discount Calculator – Free Online Calculator

Last Updated : 18 Apr, 2024

Discount Calculator: A tool designed to help you calculate how much money you can save during sales. A discount refers to a reduction from the usual cost of something. It is often given as a percentage off the original price. This GeeksforGeeks free online discount calculator is incredibly useful for anyone looking to budget better or stretch their dollar further. Whether you’re shopping online or in-store, understanding how to apply discounts to your purchases can lead to substantial savings.

How to Use the Discount Calculator

Calculating a discount manually involves a simple three-step process:

1. Convert the Discount Percentage to a Decimal: Divide the discount percentage by 100 to convert it to a decimal. For example, a 30% discount becomes 0.30.

2. Multiply the Original Price by the Decimal: Take the original price of the item and multiply it by the decimal. This gives you the amount of the discount.

3. Subtract the Discount from the Original Price: Finally, subtract the discount amount from the original price to find the discounted price.

What is a Discount Calculator?

A discount calculator is a set of instructions that assists individuals in manually calculating the discounted price of an item. It is not a physical device or software but a method that allows you to apply basic math to determine how much money you can save during a sale.

Discount Calculator Formula

The Discount Calculator Formula lets you calculate how much money you save on items that are on sale. Here’s what you need to know:

Original Price: The usual price of the item before the sale.
Discount Rate: The percentage that the price is reduced by, for example, 20% off.

To find out the discount amount, multiply the original price by the discount rate. The formula is:

Discount Amount = Original Price x Discount Rate

Then, to get the price you pay after the discount, subtract the discount amount from the original price:

Final Price = Original Price – Discount Amount

This formula is handy for shopping, as it helps you quickly work out your final cost after applying the discount.

How to Calculate Discount and Sale Price

Calculating a discount and finding the sale price of an item is straightforward. Here’s how you can do it:

1. Original Price: Start with the original price of the item before any discounts.

2. Discount Rate: This is the percentage by which the price is reduced. It is usually given as a percentage, like 20% off.

3. Calculate the Discount Amount: Multiply the original price by the discount rate. For example, if something costs $50 and the discount is 20%, the discount amount is 20% of $50. To calculate this, convert 20% to a decimal (0.20) and multiply:

Discount Amount = Original Price × Discount Rate (as a decimal)

Discount Amount = Original Price × Discount Rate (as a decimal)

Discount Amount = $50 × 0.20 = $10

Discount Amount = $50 × 0.20 = $10

Calculate the Sale Price: Subtract the discount amount from the original price to get the sale price:

Sale Price = Original Price − Discount Amount

Sale Price = Original Price − Discount Amount

Sale Price = $50 − $10 = $40

Sale Price = $50 − $10 = $40

Discount Calculator Table

Here’s a discount calculator table for discounts on an original price of Rs.100:

Discount	Amount Off	Final Price
1%	Rs.1	Rs.99
5%	Rs.5	Rs.95
10%	Rs.10	Rs.90
15%	Rs.15	Rs.85
20%	Rs.20	Rs.80
25%	Rs.25	Rs.75
50%	Rs.50	Rs.50

Discount Calculator Examples

1. A Rs.200 coat with a 40% discount:

Discount = 40/100 x Rs.200 = Rs.80

Discounted price = Rs.200 – Rs.80 = Rs.120

2. A Rs.75 pair of shoes with a 15% discount:

Discount = 15/100 x Rs.75 = Rs.11.25

Discounted price = Rs.75 – Rs.11.25 = Rs.63.75

3. A Rs.350 smartphone with a 10% discount:

Discount = 10/100 x Rs.350 = Rs.35

Discounted price = Rs.350 – Rs.35 = Rs.315

3 Practice Questions on Discount Calculator

1. If a bookshelf is priced at Rs.120 and has a 30% discount, what is the discounted price?

2. A video game that costs Rs.60 is on sale with a 20% discount. How much do you save?

3. A restaurant offers a 10% discount on a meal that costs Rs.50. What is the final price after the discount?

Conclusion

Discount Calculator is an essential tool for anyone looking to save money while shopping. By simply inputting the original price and the discount rate, you can quickly determine the amount you save and the final price you’ll pay. This tool takes the guesswork out of calculating discounts, making it easier to budget and make smart purchasing decisions. Calculating discounts is a practical and straightforward mathematical exercise. By following the three-step process outlined above, you can quickly determine the amount you will save on any purchase.