Discount Calculator
Work out what a discount actually saves you and what the final price comes to. Enter the original price and the percentage off, and both figures appear — the saving and the amount you will really pay, which is the number that matters at the till.
This is an illustrative estimate. The actual price at checkout may differ slightly due to taxes, rounding, or how the seller applies the discount.
How to calculate a discount
- Enter the original price.
- Enter the discount percentage.
- Read your savings and the final price below.
When you'd use this
- Sale shopping — Checking what 35% off a marked price genuinely comes to.
- Comparing offers — Deciding between a flat reduction and a percentage one.
- Setting your own prices — Working out a sale price for something you are selling.
- Checking a receipt — Confirming a discount was applied at the rate advertised.
Good to know
- Both numbers are shown — The saving and the final price, because shops advertise the first while your wallet cares about the second.
- Discounts above 100% are rejected — There is no such thing as a 120% discount, so the tool asks you to check the figure rather than returning a negative price.
- Stacked discounts multiply, they don't add — An extra 10% off an already 50%-reduced price gives 55% off in total, not 60%. Run the tool twice for stacked offers.
- Tax is separate — The result does not include sales tax. Use the GST Calculator if tax needs adding on top.
Frequently asked questions
Can I stack two discounts?
Not directly — apply the first discount, then use the discounted price as the new “original price” for the second one.
Does this include tax?
No — this calculates the discount only. Add tax separately using the GST Calculator if needed.
How do I calculate a discount by hand?
Multiply the price by the percentage and divide by 100 to get the saving, then subtract that from the price. For 20% off 1,500: 1,500 × 20 ÷ 100 = 300 saved, leaving 1,200.
How do I work out two discounts applied one after the other?
Apply them in sequence rather than adding the percentages. Run the tool once with the first discount, then again on that result with the second.
What percentage discount am I actually getting?
If you know the original and sale prices, the Percentage Calculator's % change mode gives you the answer directly.