Discount Calculator
Find the sale price and how much you save — % or fixed discounts, extra discounts on top, tax, quantity, buy X get Y deals and the original price from a sale price.
- Your data never leaves your device
- 100% free
- No sign-up
- Works offline after first load
How to calculate a discount
- Enter the original price and the discount (% or amount); add extra discounts, tax or quantity if needed.
- See the sale price, your savings and the real total discount.
- Switch modes to find the original price or compare a “buy X get Y” deal.
About Discount Calculator
Know exactly what you will pay before you buy. Enter the price and discount — as a percentage or an amount — and see the sale price and how much you save, with extra coupon discounts on top, sales tax and quantity included.
Stacked discounts are calculated correctly, “buy X get Y free” deals are converted into a real percentage off, you can recover the original price from a sale price, and a quick table shows the price at common discounts.
Good for
- Shopping sales and coupon codes
- Shop owners setting sale prices
- Comparing deals and offers
Tip: Check the “Total discount” card when combining coupons — it is lower than the sum.
Frequently asked questions
How do I calculate a discount?
Multiply the price by the discount and subtract: 30% off 2,499 = 2,499 − 749.70 = 1,749.30.
Is 20% + 10% off the same as 30% off?
No — the extra 10% applies to the already reduced price, so the total is 28% off. The calculator shows the real total discount.
How do I find the original price?
Divide the sale price by (1 − discount ÷ 100): 1,749 after 30% off was 1,749 ÷ 0.7 = 2,498.57.
Is “buy 2 get 1 free” a good deal?
It equals 33.3% off each item — but only if you need three. The Buy X get Y mode shows the real discount.
Can I save or share a calculation?
Yes — click Share to copy a link that opens the calculator with your numbers, Print / PDF to save the results, or open History to go back to recent calculations.
Is my data stored or sent anywhere?
No. Everything is calculated in your browser. Your recent calculations are kept only in this browser (History), and a shared link contains just the numbers you entered.