Discount Calculator
Work out a sale price and what you save.
Sale price
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- You save
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How this was calculated
Runs in your browser. Nothing you type is sent anywhere.
Run on many
Work out sale prices for a whole range at once. Upload a CSV with a price for each product. Free for up to 10 products; Pro runs up to 10,000 at once.
Download a sample CSV to see the format.
Your file never leaves your device. Every row is calculated in your browser.
About the Discount Calculator
Discount Calculator works out a sale price and how much the customer saves for any percentage off. Use it to check a deal while shopping, or to set prices for a sale.
How to use it
- Enter the original price.
- Enter the percentage off.
- Read the sale price and the saving.
Example
25% off $80.00 is $60.00, a saving of $20.00.
Questions
How is the sale price calculated?
Sale price = price × (1 − discount). For 25% off: $80.00 × 0.75 = $60.00.
Do two discounts add up?
No. 20% off, then another 10% off, is 28% off in total, not 30%, because the second discount applies to the already reduced price.
Can I discount a whole range?
Yes, with Run on many: upload a CSV of prices and apply the same discount to every row.