Discount Calculator
Work out the final price after a discount — including “extra % off” deals and tax — and see exactly how much you save.
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What does the Discount Calculator do?
Enter the original price and a discount as a percentage or flat amount. Shops often advertise stacked deals like “25% off plus an extra 10%”; the extra discount is applied to the already-reduced price, which is why it equals 32.5% off in total, not 35%. The calculator shows the effective discount so you can compare offers fairly.
Add a sales tax percentage if tax is charged on the discounted price.
How to use the Discount Calculator
- Enter the original price.
- Enter the discount and choose percent or flat amount.
- Optionally add an extra discount and sales tax.
- Read the final price, savings and effective discount.
Examples
Sale
4,999 with 25% off → 3,749.25 (you save 1,249.75).
Stacked
25% + extra 10% on 10,000 → 6,750 — an effective 32.5% discount.
Common use cases
- Shopping during sales such as 11.11 and Black Friday
- Comparing offers between shops
- Setting promotional prices for a business
Features and benefits
- Private by design — your data is processed on your device and never uploaded.
- Free with no account, no watermark and no usage limits.
- Works on phones, tablets and desktops in any modern browser.
Limitations to know
- Some shops apply tax before discounts or round prices; check the receipt.
Helpful guides
Frequently asked questions
How do I calculate a discount?
Sale price = original × (1 − discount ÷ 100).
Are two discounts added together?
No. The second applies to the reduced price, so 20% + 20% is 36% off, not 40%.
Can I use a flat discount?
Yes, choose “Flat amount”.
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