Discount Calculator
See how much you save and what you pay after a percent-off discount.
Enter the original price and the discount percentage to see exactly how much you save and what you will pay. Results update as you type — handy while you shop.
It is the classic store-sale calculation: a percent off the price, with the savings and final total shown side by side.
📖 Read the guide: How to Calculate a Discount (and Do Stacked Discounts Save More?)
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Formula
Amount saved
price × (percent off ÷ 100) = savings
Example: 20% off $150 → 150 × 0.20 = $30 saved.
Final price
price − savings = final price
Example: $150 − $30 = $120 to pay.
How to use the discount calculator
- 1Enter the original price.
- 2Enter the discount percentage (the “% off”).
- 3Read off the amount saved and the final price; copy or share the result.
Examples
| Example | Input | Result |
|---|---|---|
| 20% off | $150, 20% off | Save $30 · pay $120 |
| 30% off | $80, 30% off | Save $24 · pay $56 |
| Half price | $59.99, 50% off | Save $30 · pay $30 |
How to calculate a discount
Multiply the price by the discount percentage (as a decimal) to get the savings, then subtract the savings from the price to get what you pay. A 25%-off item at $80 saves 80 × 0.25 = $20, so you pay $60.
To stack two discounts (for example 20% then an extra 10%), apply them one after another rather than adding them: 20% then 10% off $100 is $100 → $80 → $72, which is a 28% total discount, not 30%.
Sales tax and the final total
A discount is applied to the pre-tax price; sales tax or VAT is then added to the discounted amount. If you need the tax-inclusive total, calculate the discount here first, then use the VAT calculator on the discounted price.
Frequently asked questions
How do I calculate a percentage discount?
Multiply the price by the percent off (as a decimal) to find the savings, then subtract from the price. 25% off $80 saves $20, so you pay $60.
How do I stack two discounts?
Apply them in sequence, not by adding. 20% then 10% off $100 gives $72 (a 28% total discount), because the second discount applies to the already-reduced price.
Does the discount include sales tax?
No. Discounts apply to the pre-tax price. Add sales tax or VAT to the discounted total afterward.
Is my data saved?
No — calculations run entirely in your browser.
Embed this calculator
Add the Discount Calculator to your own website — free. Copy and paste this snippet:
<iframe src="https://numvella.com/embed/discount-calculator" width="100%" height="460" style="border:1px solid #e2e8f0;border-radius:12px" title="Discount Calculator — Numvella" loading="lazy"></iframe>Related calculators
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