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Discount Price & Savings Calculator
Sale tags rarely tell the whole story when multiple discounts stack. This discount calculator applies one or two successive percentage reductions to an original price and shows both the final amount and the total money saved. It is built for shoppers who want a quick, accurate number before checkout and for anyone verifying promotional claims so you never overstate the deal.
Please enter a valid price and discount percentage(s) between 0 and 100.
Final price
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How to Use the Discount Calculator
- Enter the original price of the item before any discount.
- Add the first discount percentage and, if applicable, a second stacked discount.
- Calculate to see the final price and total savings in currency terms.
- Compare the result with the checkout total to catch pricing errors.
Type the original price, then the first discount percentage. If a second discount stacks on top, enter it in the optional box. The calculator shows the final price and the amount you save. Leave the second box empty when there is only one discount.
Discount Calculator Formula Explained
Successive Percentage Reductions
After the first discount d1, price1 equals original times (1 − d1/100). After a second discount d2, final equals price1 times (1 − d2/100). Total savings equal original minus final. A 20% discount followed by 10% is not a 30% discount; the second percentage applies only to the already-reduced price. The calculator handles this correctly so promotional math stays honest.
The calculator takes the first discount off the original price, then takes the second discount off that reduced price. It does not add the two percentages together. Tax, shipping and fixed-amount coupons are not included, so add them yourself if your checkout does.
Discount Calculator Example Calculation
A €80 item with 20% off becomes €64. An extra 10% off the reduced price brings it to €57.60—an overall saving of 28%, not 30%. Stacking discounts this way is common in seasonal sales; the calculator keeps the arithmetic honest at the till.
Worked example: enter an original price of 150, a first discount of 25% and a second discount of 10%. After the first discount the price is 112.50. After the second it is €101.25, so you save €48.75. That is 32.5% off overall, not 35%. With only the 25% discount, the final price is €112.50 and you save €37.50.
When to use this tool
Use this when verifying shop promotions, online checkout totals, or invoice line discounts.
Key Features & Benefits of This Discount Calculator
- Two stacked discounts — the second discount is taken off the already-reduced price, so 20% then 10% is 28% off in total, not 30%.
- Final price and amount saved — both appear at once, in the currency you choose.
- Optional second discount — leave the second box empty when there is only one discount.
- Instant, free and private — runs entirely in your browser, no sign-up, nothing stored.
Good to know
Check which price a discount is based on, such as a “was” price, before you compare deals. Use the calculator to verify the arithmetic matches the till receipt.
Discount Calculator — FAQs
Why isn’t 20% + 10% equal to 30% off?
Because the second discount is taken from the reduced price, not the original. 20% then 10% equals a 28% overall reduction.
Can I enter a fixed-amount coupon?
Convert the coupon to a percentage of the current price, or subtract the fixed amount from the calculated final price manually.
Does this include sales tax?
No. Apply tax to the post-discount price according to local rules if you need the all-in total.
What about buy-one-get-one offers?
Those are not pure percentage discounts. Calculate the effective price per item separately, then compare with a straight percentage off.