Discount Calculator
Know the real price before you pay.
Runs on your device
At a glance
- Input:
- Numbers you enter
- Processing:
- Runs locally in your browser
- Privacy:
- Your files stay on your device — nothing is uploaded to a server
About this tool
Stop doing mental math at checkout: enter list price and discounts to see the genuine final price, effective discount and savings.
How to use it
- Enter the original price.
- Add one or more discount percentages.
- Optionally add tax.
- See final price and total savings instantly.
Frequently asked questions
How are stacked discounts handled?
Sequentially, like stores apply them: a 20% then 10% stack multiplies by 0.8 × 0.9 = 0.72 — a true 28% off, not 30%. The tool shows this real total.
Can I include sales tax?
Yes — enter a tax rate to see final price with tax applied after discount, which is how most retailers calculate receipts.
Is anything calculated on a server?
No — all math runs in your browser instantly.