How do I calculate a 20% discount?

Discounted price = Original price × (1 - 20/100) = Original price × 0.80. For example, 20% off ₹1,000 = ₹1,000 × 0.80 = ₹800. You save ₹200.

How do I calculate the original price from a discounted price?

Original price = Sale price / (1 - Discount%). If a product costs ₹600 after a 25% discount, original = 600 / 0.75 = ₹800.

What is the difference between 20% off and 20% discount?

These mean the same thing. "20% off" and "20% discount" both mean the price is reduced by 20% of the original price.

How does stacked/double discount work?

A stacked discount multiplies the savings. 20% off, then an additional 10% off = 1 - (0.80 × 0.90) = 1 - 0.72 = 28% total discount, NOT 30%.

What is the best way to compare discounts?

Always compare the final price, not just the discount percentage. A 50% off item that was overpriced may be more expensive than a 20% off item at a fair price.

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Discount Calculator

Calculate sale price, discount amount and savings percentage instantly.

Updated Mar 2026100% Private — runs in browser

Original Price (\u20B9)

Discount (%)

How to Use Discount Calculator

1
Enter the original price of the product.
2
Enter the discount percentage (e.g., 30 for 30% off).
3
The sale price and savings amount are shown instantly.
4
Use the reverse mode to enter sale price and find the discount percentage.
5
Add a second discount for stacked discount calculations.

About Discount Calculator

Our free discount calculator makes shopping math instant. Enter the original price and discount percentage to see the sale price and your savings — or work backwards from the sale price to find the discount percentage applied.

Key Features

Discount to Sale Price: Enter original price + discount % → get sale price and savings amount.
Reverse Mode: Enter original and sale price to calculate the discount percentage.
Stacked Discounts: Calculate the correct combined discount when discounts are applied on top of each other.
Instant Results: All calculations update in real time as you type.

Who Is This For?

Online shoppers comparing deals during Diwali or Big Billion Day sales, retailers setting promotional prices, students studying percentage problems, and anyone who wants quick, accurate discount math without mental arithmetic.

Privacy & Security

Runs 100% in your browser — no signup, no uploads, no data stored.