Sale Price Calculator
The sale price calculator solves for original price, sale price, discount percentage, or amount saved. Enter any three values, and the calculator finds the fourth. Use this to understand discounts while shopping, compare prices, or calculate savings on purchases.
Sale price formulas
Sale Price = Original Price × (1 - Discount % / 100)
Discount % = ((Original Price - Sale Price) / Original Price) × 100
Amount Saved = Original Price - Sale Price
How to use this calculator
- Enter the original full price in "Original price".
- Enter the discount percentage in "Discount %".
- The calculator shows the sale price, amount saved, and the total you pay.
- You can modify any value and the others recalculate instantly.
Example calculation
Original price: $100. Discount: 20%. Sale price = $100 * (1 - 0.20) = $80. Amount saved = $100 - $80 = $20.
Sale price calculator: frequently asked questions
What is a discount?
A discount is a reduction from the original price. Discount % = (Original Price - Sale Price) / Original Price * 100%. The larger the %, the bigger the savings.
How do I calculate what I saved in dollars?
Amount Saved = Original Price - Sale Price. Or multiply original price by discount %.
Can this calculator work backwards?
Yes. You can find: original price, sale price, discount %, or amount saved. Enter any three values, and it solves for the fourth.
What if there are multiple discounts?
Apply them sequentially. First discount off original, then second discount off the reduced price. This calculator handles single discounts.
Does this include tax?
No, this shows pretax discounts. Add sales tax to the final sale price to get the total you pay.
Official sources
- Federal Trade Commission: Consumer Guidance.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.