Calculators
Discount Calculator
Find the sale price after a percent discount, or reverse-engineer the discount percent from original and sale prices. Handy for shopping and promo math.
Runs entirely in your browser. Your data never leaves this device.
- Percent off
- Sale price
- You save amount
- Reverse % mode
- Instant
Workspace
Client-side · No upload
How it works
- Adjust the controls or paste your input.
- Preview results instantly in the browser.
- Copy or download the output — nothing is uploaded.
Key features
- Percent off
- Sale price
- You save amount
- Reverse % mode
- Instant
FAQ
Is this private?
Yes — processing runs in your browser; we do not upload your inputs.
Do I need an account?
No — free to use without signup.
Does it work offline?
After the page loads, most tools work without further network calls.
Mobile friendly?
Yes — layouts adapt to smaller screens.
Keep building
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