Discount Calculator
Find the sale price — or reverse it back to the original. Any %.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use Discount Calculator
Follow these steps — everything happens instantly in your browser.
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Step 1. Pick a mode: 'Find final price' (forward) or 'Find original price' (reverse).
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Step 2. In forward mode, enter the original price and the discount percentage.
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Step 3. In reverse mode, enter the sale price and the discount percentage.
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Step 4. See the savings and the final/original amount with a breakdown bar.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about discount calculator.
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