Discount Calculator

A "25% off" sale tag doesn't tell you the actual amount you'll save or what you'll pay at checkout — this calculator converts a discount percentage into real numbers instantly, so you know exactly what a sale price works out to before you buy.

How the calculation works

The tool multiplies the original price by the discount percentage to find the amount saved, then subtracts that from the original price to get the final price — the same two-step math a cashier's system runs at checkout, just done instantly as you type.

Common situations for checking a discount

Comparing two different sales — a 30%-off item at one store versus a 25%-off item at another — to see which actually costs less in real numbers rather than just comparing percentages. Budgeting for a big purchase during a sale event to know the exact final cost ahead of time. Checking a store's advertised savings claim against the actual math to confirm the discount is calculated correctly.

Frequently Asked Questions

Does this handle stacked discounts (like 20% off, then an extra 10% off)? Not directly in one step — for stacked discounts, calculate the first discount, take that final price, and run it through the calculator again as the new "original price" with the second discount percentage.

Does it include sales tax on top of the discount? No — this calculates the discount only; for a final price that also includes tax, use the GST/Tax Calculator on the discounted price afterward.

Is my data saved anywhere? No — the calculation happens entirely in your browser using JavaScript; nothing is stored or transmitted.