Is 50% off better than buy one get one free?

For a single item, 50% off is better. BOGO requires buying two items, so you pay full price for one. If you need two items, they're equivalent. But 50% off one item saves money if you only need one.

When is sales tax calculated?

Sales tax is calculated on the discounted price, not the original price. So discounts reduce both what you pay and the tax you owe. This is why we apply the discount first, then tax.

How do I calculate the original price from a sale price?

Divide the sale price by (1 - discount%). For example, if an item is $60 after 25% off: $60 ÷ 0.75 = $80 original price.

What discount do I need to reach a specific price?

Use the formula: Discount % = (Original - Target) ÷ Original × 100. For $80 down to $50: ($80 - $50) ÷ $80 × 100 = 37.5% discount needed.

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Discount Calculator

Calculate discount amounts, final prices after discounts, and total savings with optional tax calculations

Original Price

Discount

Additional Discount

Sales Tax Rate

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Calculate Discounts and Final Prices Instantly

Shopping a sale? Our discount calculator helps you figure out exactly how much you'll save and pay. Calculate single discounts, stacked discounts (like an extra 20% off sale prices), and see the final price with sales tax. Know your true savings before you buy.

How Discount Calculations Work

A discount reduces the original price by a percentage. For a 25% discount on $100, you save $25 and pay $75. When stacking discounts, the second discount applies to the already-reduced price, not the original. Adding sales tax increases the final amount you pay.

Discount Calculation Formula

Final Price = Original × (1 - Discount%) × (1 + Tax%)

How to Calculate a Discount

Common Use Cases

Sale Shopping

Quickly calculate prices during sales events and clearances.

Coupon Stacking

See your real savings when using multiple discounts together.

Budget Planning

Know exact final prices including tax before checkout.

Price Comparison

Compare different discount offers to find the best deal.

Frequently Asked Questions

Stacked discounts apply sequentially, not together. A 30% discount plus 20% extra isn't 50% off. First 30% comes off ($100 becomes $70), then 20% off the new price ($70 becomes $56). Total savings: 44%, not 50%.