Best Free Discount Calculator
Work out a sale price and your saving — or the % off from two prices — free, no signup.
100% free
No signup
No watermark
Files processed in memory, never stored
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How it works
- Choose a mode. Pick "find the sale price" or "find the % off" depending on what you know.
- Enter the numbers. Type the original price and the discount percentage — or the original and final prices in reverse mode.
- Read the result. The sale price and amount saved (or the percentage off) update instantly. Add a sales-tax rate under Advanced options.
About this tool
Find the sale price in a second. Enter the original price and the percentage off and the calculator shows the final price and exactly how much you save — updating live as you type. Switch to reverse mode to work it the other way: enter the original and the final price and it tells you the percentage discount. Everything runs in your browser, so nothing is sent anywhere. The Advanced options add a sales-tax percentage applied after the discount.
What people use it for
- Find the sale price after a percentage discount
- See exactly how much money a discount saves you
- Work out the percentage off from the original and sale prices
- Add sales tax after the discount to get the real checkout price
Frequently asked questions
It multiplies the original price by the discount percentage to get the saving, then subtracts that from the original.
Reverse mode takes the original price and the final price you paid and tells you the percentage discount, handy for checking how big a "sale" really is.
Yes. Open Advanced options and enter a sales-tax percentage; it is applied to the discounted price.
After. The discount comes off first, then the tax is added to the reduced amount — the order most stores use.
Yes. It works on the numbers regardless of currency; the symbol shown is just for display.
No. The whole calculation runs in your browser, so prices and percentages never leave your device.
Yes — Discount Calculator is completely free, with no watermark on the output and no credit card required.
Yes. It runs in your browser, so Discount Calculator works on phones and tablets as well as desktop — there is no app to install.
No. Discount Calculator works with no signup at all; an optional free account only exists to unlock higher usage limits.
Usually just a few seconds for a typical file — Discount Calculator starts working the moment you give it your input.