Discount Calculator

What is a Discount Calculator?

A **Discount Calculator** is a simple tool used to figure out the final price of an item after a "percentage off" discount is applied. It also shows you the most important number: how much money you are saving. This is the perfect tool for shoppers, helping you quickly check prices during a sale to make sure you're getting a good deal.

Whether you're looking at a 10% off coupon, a 25% off holiday sale, or a 50% off clearance event, this sale price calculator does the math for you instantly.

The Formula for Calculating a Discount

The calculation is a simple two-step process. First, you find the savings amount, and then you find the final price.

1. Amount Saved = Original Price × (Discount % / 100)

2. Final Price = Original Price - Amount Saved

Alternatively, you can find the final price in one step. If an item is 20% off, you are paying 80% (100% - 20%) of the price.

Final Price = Original Price × (1 - (Discount % / 100))

Solved Example

Let's say you want to buy a pair of shoes that are on sale:

Original Price: $80
Discount: 25% off

Calculation:

1. Amount Saved = $80 × (25 / 100)

2. Amount Saved = $80 × 0.25 = $20

3. Final Price = $80 - $20 = $60

The calculator would show you a Final Price of $60 and that You Saved $20.

Practical Applications & Use Cases

This percentage off calculator is useful in many daily scenarios:

Shopping & Sales: Quickly check the price of items during Black Friday, holiday sales, or clearance events.
Comparing Deals: Is "30% off" at one store a better deal than "$25 off" at another? This calculator helps you compare.
Negotiating: When buying a car or furniture, you can use this to quickly see the real price if you negotiate a "5% off" deal.
Business Use: Business owners can use this to determine sale pricing for their own products or to calculate the cost of a discounted invoice.

Common Discount Values

While discounts can be any number, here are some common ones you'll see in stores and their quick-math equivalents:

10% off: The easiest one. Just move the decimal one place to the left. (10% of $80 is $8).
15% off: Find 10% ($8), then add half of that ($4). (15% of $80 is $12).
20% off: Find 10% ($8) and double it. (20% of $80 is $16).
25% off: Divide the price by 4. (25% of $80 is $20).
50% off: Divide the price by 2. (50% of $80 is $40).

Frequently Asked Questions (FAQ)

1. How do you calculate a 20% discount?

To calculate a 20% discount, convert 20% to a decimal (0.20). Multiply the original price by 0.20 to find the savings (e.g., $50 × 0.20 = $10 saved). Then, subtract the savings from the original price ($50 - $10 = $40 final price).

2. How to calculate a double discount (e.g., 20% off + extra 10% off)?

You must apply the discounts sequentially; you cannot just add them. First, apply the 20% discount (e.g., $100 - 20% = $80). Then, apply the second 10% discount to the *new* price ($80 - 10% = $72). The total discount is 28%, not 30%.

3. Does this calculator include sales tax?

No. This calculator finds the final sale price *before* sales tax. Sales tax is typically applied to the discounted price, not the original price.

Knowing your savings is always smart. For business owners, you can use this calculator with our Profit Margin Calculator to see how discounts affect your bottom line, or our Break-Even Point Calculator.

Calculate Your Savings

Final Price