Discount Calculator
A discount is a reduction applied to a listed price, lowering how much a buyer actually pays. Whether it is written as a percentage off, a fixed amount off, or a stacked set of promotional offers, understanding exactly how a discount changes a final price is essential for shoppers, retailers, eCommerce businesses, wholesalers, accountants and finance professionals alike — a small miscalculation on an invoice or a marketing campaign can quietly cost real money.
This calculator instantly finds discount amount, final price, savings, original price, discount percentage, tax and the true result of sequential discounts. It supports percentage discounts, fixed amount discounts, reverse discount calculations, tax-inclusive pricing, multiple stacked discounts, and multiple international currencies, with every result updating live as you type.
✓ 6 calculation modes ✓ 7 currencies ✓ Built for shoppers, retailers & finance teams
Discount Calculator
Discount Formula
The core equations behind every result this calculator produces.
Discount Amount
Used to work out exactly how much is taken off the listed price of an item or invoice.
Final Price
The sale price a customer actually pays once the discount has been subtracted.
Savings
The total amount saved compared to paying the original listed price.
Discount Percentage
Used to reverse-engineer the discount rate from a receipt showing only original and final prices.
Original Price
Used to recover the pre-discount price when only the sale price and discount rate are known.
How to Calculate Discount and Sale Price
Three steps take you from a listed price and a discount rate to the amount a customer actually pays.
Step 1 — Convert the Discount to a Decimal
Take the discount percentage and divide it by 100. A 20% discount becomes 0.20. This decimal is what the original price gets multiplied by in the next step.
Step 2 — Calculate the Discount Amount
Multiply the original price by the decimal from Step 1: Discount Amount = Original Price × Discount%. A $250 item at 20% off has a discount amount of 250 × 0.20 = $50.
Step 3 — Subtract to Find the Sale Price
Subtract the discount amount from the original price: Sale Price = Original Price − Discount Amount. Continuing the example, $250 − $50 = $200, which is the final price the customer pays.
A fixed discount (e.g. "$50 off") skips Step 1 and 2 — you already have the discount amount — and goes straight to Step 3. To go the other direction and find a discount rate from a fixed amount, divide the discount amount by the original price and multiply by 100.
Sample Discount Percentage Calculation
A worked example applying the formula and steps above.
Example — Percentage Discount
Original Price = $250, Discount = 20%.
Frequently Asked Questions
Straight answers to the most common discount calculation questions.
How do I calculate a percentage discount?
Multiply the original price by the discount percentage, then subtract that amount from the original price to get the final price.
How do I calculate the original price before a discount?
Divide the final price by one minus the discount percentage expressed as a decimal: Original Price = Final Price ÷ (1 − Discount%).
How do I calculate a fixed discount?
Subtract the fixed discount amount from the original price to get the final price, and divide the discount amount by the original price to find the equivalent percentage.
How do multiple discounts work?
Sequential discounts are applied one after another to the reduced price, not added together, so each additional discount is calculated on a smaller base.
Why don't two 50% discounts equal 100% off?
Because the second discount is applied to the price remaining after the first discount, not the original price, leaving the customer paying 25% of the original price, not 0%.
Should tax be applied before or after a discount?
It depends on local tax rules and retailer policy; applying tax after the discount is more common and generally results in a lower total for the customer.
How do I calculate savings?
Savings equals the original price minus the final price, which for a single discount is the same as the discount amount.
Can I use this calculator for online shopping?
Yes, it is built for everyday shopping scenarios including coupon codes, seasonal sales and marketplace discounts.
Can businesses use this calculator?
Yes, retailers, wholesalers and accountants use it for invoice discounts, promotional pricing and bulk order calculations.
What currencies are supported?
USD, EUR, GBP, INR, CAD, AUD and JPY are supported; currency selection only changes the displayed symbol.
How accurate are the calculations?
The calculator applies standard financial formulas with adjustable decimal precision from 0 to 4 places.
Is this calculator free?
Yes, it is completely free to use with no sign-up required.
Can I calculate wholesale discounts?
Yes, the percentage and fixed discount modes work equally well for wholesale bulk pricing and retail single-item pricing.
Can I calculate promotional pricing?
Yes, the sequential discount mode is designed for stacked promotional offers such as a sale price combined with an extra coupon discount.
Can students use this calculator?
Yes, it is useful for learning percentage, ratio and financial literacy concepts with real shopping examples.