Free & private

Discount Price Calculator

Enter an original price and a discount to see exactly how much you save and what you'll actually pay, including a second stacked discount and sales tax.

%Your result will appear hereAdd a price and discount, then select calculate to see your savings and final price.

You save

$0.00

Original price

After first discount

Final price

Tax, if entered, is applied after all discounts to the discounted price — the way most checkouts calculate it.

How to use the discount price calculator

This free tool works out exactly what a sale price costs you. Enter the original price, choose percent off or a flat dollar amount, and add a second discount or sales tax if they apply. Everything runs locally in your browser, so nothing you type is uploaded or stored.

1. Enter the price

Type the original, pre-discount price of the item or order.

2. Add your discounts

Choose percent or flat off, and stack a second coupon if you have one.

3. Review your savings

See the amount saved, the price after tax, and the final total.

Understanding stacked discounts and tax

A single discount is straightforward: multiply the price by the discount percentage (or subtract a flat amount) to find your savings. Stacked discounts are trickier, because the second discount applies to the already-discounted price, not the original — so two 20% discounts never add up to 40% off.

Percent discount formula

Savings = price × (discount ÷ 100). Final price = price − savings.

Stacked discount example

$100 at 20% off becomes $80. A further 10% off $80 saves $8, for a final price of $72 — not $70.

Tax after discount

Most retailers calculate sales tax on the discounted price, so tax is applied last, after every discount.

How is the discounted price calculated?

Savings equal the original price multiplied by the discount percentage, or the flat amount you enter directly. The final price is the original price minus the savings.

How do stacked discounts work?

A second discount is applied to the price after the first discount has already been subtracted, not to the original price. This mirrors a coupon applied on top of a sale price.

Does the calculator include sales tax?

If you enter a tax rate, it is applied after all discounts to the discounted price, matching how most retailers calculate tax at checkout.

Is this discount calculator free and private?

Yes. It is free to use, and every calculation happens locally in your browser rather than being uploaded or stored by this tool.