Discount Calculator – Sale Price & % Off
Free discount calculator: find sale price from % off, calculate discount amount, or reverse-engineer original price and percent savings — shopping math made easy.
Private: calculation runs only in your browser.
Discount Calculator
Discount Calculator
Sale price
$56.00
You save$24.00
Effective % off30%
Related tools
All toolsWhat Is a Discount Calculator?
A discount calculator converts percent-off deals into real dollars: sale price, amount saved, and true percent when you only know two of the three numbers. Stacked mode applies coupons in sequence the way stores do.
Discount Formulas
Sale = Original × (1 − % ÷ 100)
% Off = ((Original − Sale) ÷ Original) × 100
Original = Sale ÷ (1 − % ÷ 100)
Frequently Asked Questions
How do you calculate a discount?
Multiply original by percent ÷ 100 for savings, then subtract from original.
How do stacked discounts work?
Apply each % to the remaining price — 20% then 10% off $100 = $72, not $70.
Is this discount calculator free?
Yes — free and private.