Discount Calculator

Enter original price, discount percent, optional extra discount, and tax to instantly calculate sale price and total savings.

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Interactive Tool

Discount Calculator

Original priceDiscount (%)Extra discount (%)Tax (%)

20% Effective discount

$80.00

Sale price

$80.00

You save

$20.00

Tax amount

$0.00

Effective discount

20%

This discount calculator helps shoppers, merchants, and marketers calculate sale price, savings, and final cost before checkout.

It supports stacked discounts and optional tax so it works for coupons, seasonal campaigns, price checks, and quick retail math.

Enter original price
Type the list price or subtotal before discount.
Add discounts and tax
Set the main discount, optional extra discount, and tax rate if needed.
Review final price
See the sale price, total savings, effective discount, tax amount, and final total.

Simple 20% off sale

Calculate a common retail markdown.

Input

$100 original price, 20% off

Output

Sale price: $80, You save: $20

Coupon plus tax

Calculate a stacked coupon and checkout total.

Input

$120, 15% off, extra 10% off, 5% tax

Output

Final total: $96.39

Can it calculate stacked discounts?

Yes. The extra discount is applied after the first discount, which matches how many coupon and promotion systems work.

Does it include tax?

Tax is optional. Enter 0 for pre-tax sale price or add a tax rate to estimate checkout total.

What is effective discount?

Effective discount is the total percentage saved after all stacked discounts are applied to the original price.