Discount Calculator

How to use

1. Enter Price — Type the original price of the item
2. Enter Discount — Enter the discount percentage
3. See Savings — View the amount saved and final price (optionally with tax)

What Is a Discount Calculator?

A discount calculator determines how much you save and what you'll actually pay when an item is on sale. Enter the original price and the discount percentage, and the tool instantly shows your savings amount and the final price.

This tool also supports optional sales tax calculation. After the discount is applied, tax is computed on the reduced price — which is how sales tax works in most jurisdictions.

How Discounts Work

A percentage discount reduces the original price by that percentage. The formula is straightforward:

• Savings: Original Price × (Discount % ÷ 100)
• Final Price: Original Price − Savings
• With Tax: Final Price × (1 + Tax % ÷ 100)

For example, a $120 item with a 25% discount: Savings = $30, Final Price = $90. With 8% tax: $90 × 1.08 = $97.20.

Understanding Stacked Discounts

Multiple discounts applied sequentially are not the same as adding them together. A 20% discount followed by a 10% discount is not 30% off. Instead: $100 → $80 (20% off) → $72 (10% off $80) = 28% total discount. The order doesn't matter mathematically, but the total is always less than the sum of individual percentages.

Common Discount Scenarios

• Retail sales: Black Friday, seasonal clearance, promotional discounts
• Coupon codes: Online shopping discount codes
• Bulk pricing: Volume discounts for large orders
• Negotiation: Calculate the actual price after a negotiated percentage off
• Comparison shopping: Compare effective prices across stores with different discounts

Tax on Discounted Items

In most places, sales tax is applied after the discount. This means you pay tax on the reduced price, not the original price. This tool correctly applies tax to the post-discount price. Some jurisdictions may have different rules for specific product categories.

Privacy

All calculations run in your browser. No pricing data is sent to any server.

Calculate percentages with our Percentage Calculator. Figure out tips with our Tip Calculator.

Frequently asked questions

How is the discount calculated?

Savings = Original Price × Discount % ÷ 100. Final Price = Original Price − Savings. If tax is specified, it's applied to the discounted price.

Can I add sales tax?

Yes. Enter the tax percentage and it will be applied to the discounted price, showing you the total amount you'll actually pay.

Does it handle stacked discounts?

This calculator handles a single discount. For stacked discounts (e.g., 20% off then 10% off), apply them sequentially — the result differs from a single 30% discount.

Is this accurate for all currencies?

Yes. The math is the same regardless of currency. The calculator works with any numerical values.

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