How it works
Enter the shelf price and advertised discount. This assumes any entered sales tax applies after the discount; rules can vary by location.
FormulaFinal price = price × (1 − discount/100) × (1 + tax/100).
EVERYDAY / SHOPPING
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Estimate the final price after a discount, including optional sales tax on the discounted price.
Your numbers
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◈ Your values stay in your browser. No account needed.
YOUR RESULT
Enter your numbers to see a result.
Discount calculator: a worked example
With original price 120, discount (%) 20, sales tax after discount (%) 0, the price after discount and tax is $96.00.
| Original price | 120 |
|---|---|
| Discount (%) | 20 |
| Sales tax after discount (%) | 0 |
| Price after discount and tax | $96.00 |
|---|---|
| You save | $24.00 |
| Price before tax | $96.00 |
| Tax added | $0.00 |
Amounts are shown in US dollars for illustration. Choose your own currency in the calculator above; it labels amounts and does not convert them.
Make the numbers useful
Try changing one input at a time. The live result helps you see which assumption has the greatest effect.
Use Save scenario A, change an input, and compare both results side-by-side. You can also share your settings using a link.
Modelled results are estimates. Independently check decisions involving health, finances or safety.
Frequently asked questions
How is the discount calculator calculated?
Final price = price × (1 − discount/100) × (1 + tax/100). Enter the shelf price and advertised discount. This assumes any entered sales tax applies after the discount; rules can vary by location.
What does the discount calculator example show?
With original price 120, discount (%) 20, sales tax after discount (%) 0, the price after discount and tax is $96.00. You save: $24.00; Price before tax: $96.00; Tax added: $0.00.
What assumptions and limits apply?
This is an estimate based on the inputs and assumptions shown on this page, not professional advice. Check anything with financial, health or safety consequences independently.
Is my data private?
Yes. Calculations run in your browser and your numbers are not sent to a server. A share link contains the inputs you choose to share, so check it before sending it to anyone.
Can I use my own currency?
Yes. Pick from 33 currencies and the amounts are labelled to match. The selector does not convert between currencies, so enter prices in your own currency.