How do I calculate a percentage discount?

Multiply the original price by the discount percentage divided by 100, then subtract from the original price. For example, 25% off $80: $80 × 0.25 = $20 discount, so the sale price is $60.

Are stacked discounts the same as adding them?

No. A 20% off + 10% off is not 30% off. The second discount applies to the already-reduced price. 20% + 10% stacked is actually 28% total discount.

How do I calculate the final price with tax after a discount?

First apply the discount to get the sale price, then add the tax percentage on top. For example: $100 item with 20% off = $80, then 10% tax = $80 + $8 = $88 final price.

Discount Calculator

Find the final price after discounts, tax, and see exactly how much you save.

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Everything you need to know

Instant Discount Math

Shopping and need to know what 30% off actually means in real money? Enter the original price, pick the discount percentage, and you'll see the sale price and exact savings instantly. Works with any currency — auto-detected from your location.

Stacked Discounts Made Clear

Many stores run promotions like "extra 15% off sale items." But 25% off + 15% off isn't 40% off — it's actually 36.25%. Use the second discount field to see the real combined savings. No more guesswork.

Tax Included

Sales tax, VAT, or GST can surprise you at checkout. Add your local tax rate to see the true final price after discounts and tax. Planning a bulk purchase? Set the quantity to see the total for multiple items.

Pro Tips for Smart Shopping

Compare unit prices — a "buy 2 get 1 free" deal is effectively 33% off. Use this calculator to verify.
Watch for phantom discounts — some retailers inflate the "original" price. If the deal sounds too good, it probably is.
Stack strategically — apply the bigger percentage first for the same mathematical result, but always verify the final number.

Related Tools

Need quick percentage math? Try the Percentage Calculator. Converting prices between currencies? Use the Currency Converter. Splitting a restaurant bill? The Tip Calculator handles that.