How do I calculate 30% off a price?

Multiply the original price by 0.30 to get the discount amount, then subtract from the original. Example: 30% off $80 = $80 × 0.30 = $24 discount → sale price of $56.

What is the formula for discount percentage?

Discount % = ((Original Price − Sale Price) / Original Price) × 100. For example: original $100, sale $75 → (($100 − $75) / $100) × 100 = 25% discount.

Can I calculate stacked discounts (discount on a discount)?

Stacked discounts are multiplicative, not additive. A 20% discount followed by another 10% off is not 30% off — it's 1 − (0.80 × 0.90) = 28% total discount. The calculator handles stacked discounts in sequence mode.

Home ToolsDiscount Calculator

Discount Calculator

Name: Discount Calculator
Rating: 4.8 (120 reviews)
Author: DailyDevTools

Calculate sale price and savings

Original Price ($)

Discount (% off)

Sales Tax (%) (Optional)

Final Price

$0.00

Original Price$0.00

You Save-$0.00

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What is Discount Calculator?

Whether you're shopping, pricing products, or analyzing a sale, a discount calculator quickly finds the sale price from an original price and percentage off, or the percentage saved from two prices. DailyDevTools' Discount Calculator handles all three directions: find sale price, find discount percentage, or find the original price — and shows savings in both dollar amount and percentage.

How to use Discount Calculator

1Enter the original price and the discount percentage to find the sale price and amount saved
2Or enter the original price and sale price to find the discount percentage
3Or enter the sale price and discount percentage to reverse-calculate the original price
4Results update instantly as you type

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