Discount Calculatorの使い方
- Enter – Type your numbers – the result updates instantly.
- Check – See the breakdown and formula.
- Use it – Copy the result or share the link.
Discount Calculatorについて
See the final price after a percentage discount, how much you save, and the effect of two discounts in a row (e.g. 20% + an extra 10%). Also works backwards: what discount did I get?
よくある質問
Are 20% + 10% the same as 30% off?
No. Stacked discounts multiply: 100 → 80 → 72, so 28% in total.
How do I calculate the discount percentage?
(Original − sale price) ÷ original × 100.
Is the Discount Calculator free?
Yes, completely free with no signup and no daily limit.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Windows and Mac.