Skip to Content

Discount Calculator

Enter price and discount.

What is a Discount Calculator?

Calculate Discounts and Final Prices Instantly

A Discount Calculator helps you quickly determine how much money you save on a product or service after applying a discount. Simply enter the original price and the discount percentage, and the calculator instantly shows your savings and the final price.

Our calculator also lets you add GST after applying the discount, making it ideal for businesses, retailers, freelancers, and customers who need accurate pricing.

Whether you're shopping online, preparing quotations, creating invoices, or comparing offers, this tool provides quick and accurate calculations.


How to Use This Discount Calculator

Using the calculator is simple and only takes a few seconds.

Step 1

Enter the Original Price of the product or service.

Example: โ‚น1,000

Step 2

Enter the Discount Percentage.

Example: 20%

Step 3 (Optional)

Enable Add GST on Final Price if GST should be calculated after the discount.

Step 4

Select the applicable GST Rate.

Example: 18%

Step 5

The calculator instantly displays:

  • ๐Ÿ’ธ Total Savings
  • ๐Ÿ’ฐ Price After Discount
  • ๐Ÿงพ GST Amount
  • ๐Ÿ’ณ Final Payable Price

What Do the Results Mean?

You Save

The total amount reduced from the original price because of the discount.

Price After Discount

The price after applying the selected discount but before GST.

GST Amount

The GST calculated on the discounted price.

Final Price

The total amount payable after applying both the discount and GST.


Discount Formula

Discount Amount

Discount = Original Price ร— Discount % รท 100

Price After Discount

Final Price = Original Price โˆ’ Discount

GST Amount

GST = Discounted Price ร— GST Rate รท 100

Final Payable Amount

Total = Discounted Price + GST

Why Use Our Discount Calculator?

  • โœ… Calculate discounts instantly
  • โœ… Add GST after discount
  • โœ… Accurate calculations
  • โœ… Simple and user-friendly interface
  • โœ… Mobile-friendly design
  • โœ… No registration required
  • โœ… Completely free

Who Can Use This Tool?

This calculator is useful for:

  • ๐Ÿ› Online Shoppers
  • ๐Ÿ›’ Retail Stores
  • ๐Ÿ’ผ Business Owners
  • ๐Ÿ“Š Accountants
  • ๐Ÿงพ GST Practitioners
  • ๐Ÿง‘โ€๐Ÿ’ป Freelancers
  • ๐Ÿช Wholesalers
  • ๐Ÿ“ฆ E-commerce Sellers

Frequently Asked Questions

Is this Discount Calculator free?

Yes. It is completely free to use without registration.

Can I calculate GST after applying a discount?

Yes. Simply enable Add GST on Final Price, choose the GST rate, and the calculator will include GST in the final amount.

How is the discount calculated?

The discount amount is calculated by multiplying the original price by the discount percentage and dividing the result by 100.

Does the calculator work for business quotations?

Yes. It is useful for quotations, invoices, product pricing, and sales offers.

Can I use this calculator on mobile?

Yes. The calculator is fully responsive and works on smartphones, tablets, laptops, and desktop computers.