Discount Calculator
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Work out the final price after a discount in seconds. Enter the original price, add one or more discounts (a percentage or a fixed amount), stack a coupon, and optionally add or remove tax. You instantly see what you pay, how much you save, and the real discount percentage. Everything runs in your browser — nothing is uploaded.
How to use
- Enter the original price.
- Add a discount and choose percent off or a fixed amount.
- Stack more discounts or a coupon if you have them — they apply in order.
- Optionally set a tax rate and how to round the result.
- Read the final price, the amount saved and the effective discount, then copy it.
How stacked discounts work
When you apply more than one percentage discount, they are multiplied, not added. A 30% discount followed by an extra 10% is not 40% off — the second 10% applies to the already-reduced price, giving 37% off in total. A fixed-amount coupon is then subtracted, and tax (if any) is applied last.
Features
Stacked discounts
Add several discounts that apply one after another, exactly like real sales where an extra percentage comes off an already-reduced price.
Coupons & fixed amounts
Mix percentage discounts with fixed-amount coupons in any order to match the deal you actually have.
Add or remove tax
Add tax to a pre-tax price, or strip tax out of a tax-included price, with any rate you enter.
Rounding control
Round the final price up, down, to the nearest unit, or keep the exact decimal value.
Effective discount %
See the true overall discount as a single percentage, so you know how good the combined deal really is.
Common use cases
Shopping during a sale
Quickly find the checkout price of a 20%, 30% or 50%-off item before you buy.
Stacking a coupon
Combine a store-wide percentage sale with a coupon code to see the real total.
Tax-included vs. tax-excluded
Convert a pre-tax price to the amount you'll actually pay, or back the other way.
Comparing deals
Compare two offers by their effective discount percentage instead of guessing which is cheaper.
Notes & tips
- Multiple percentage discounts multiply — they are never a simple sum.
- Stores may round differently (up, down or to the nearest unit); pick the rounding that matches yours.
- This tool shows plain numbers without a currency symbol, so it works for any currency.
- All calculations happen on your device; nothing is sent to a server.
Frequently asked questions
- How much is 30% off?
- 30% off means you pay 70% of the price. On 1,000 that's 700, saving 300. Enter your original price and a 30% discount to see it instantly.
- If I stack 30% off and another 10% off, is that 40%?
- No. The second 10% applies to the already-discounted price, so the total is about 37% off, not 40%. This calculator applies discounts in order automatically.
- How do I handle tax-included or tax-excluded prices?
- Choose Add tax to turn a pre-tax price into the gross amount you pay, or Remove tax to extract the net price from a tax-included total.
- Does the order of a coupon and a percentage discount matter?
- It can. A percentage taken before a fixed coupon gives a different result than after. Drag isn't needed — just add them in the order your store applies them.
- Is my data uploaded?
- No. The calculator runs entirely in your browser. Nothing is sent to a server and there is no sign-up.