Discount Calculator

Discount Calculator

Mode A — What is the sale price?

Mode B — What percentage off?

Mode C — What was the original price?

Discount Calculator — Three Modes for Every Shopping Scenario

Our discount calculator solves all three common discount questions at once. Whether you want to know what a product costs after a percentage off, what discount you're getting when you see two prices, or what the original price was before a sale — all three answers update instantly as you type.

Mode A: Original Price + % Off = Sale Price

The most common use case. Enter the original (full) price and the discount percentage, and instantly see the sale price and the dollar amount you save. For example, a $120 jacket at 25% off costs $90, saving you $30.

Mode B: Two Prices = Discount Percentage

Perfect for comparing deals. If a store shows an original price of $200 and a sale price of $140, this mode tells you that's a 30% discount and $60 in savings. Useful for verifying that advertised "sale prices" are as good as claimed.

Mode C: Final Price + % Off = Original Price

Useful when you see only the discounted price and want to know the original. If an item is labeled $80 and tagged "20% off," the original price was $100. Retailers sometimes only show the final price — this reverses the calculation.

Shopping Smarts: Making the Most of Discounts

  • Black Friday/Cyber Monday: Use Mode B to verify if advertised savings are real compared to a pre-sale price check.
  • Coupon stacking: Apply sequential discounts — first apply the larger percentage, then the smaller, to a progressively lower price.
  • Bulk buying: Calculate per-unit discount to see if buying in bulk truly saves money.
  • Outlet stores: Compare outlet prices to full retail using Mode B to find the true percentage saved.

Frequently Asked Questions

How do I calculate a 20% discount?
Multiply the original price by 0.20 to find the discount amount, then subtract from the original. For example: $150 × 0.20 = $30 discount; sale price = $150 − $30 = $120. Mode A does this for you instantly.
Are stacked discounts additive?
No. Two separate discounts of 20% and 10% do not equal 30% off. The second discount applies to the already-reduced price: $100 → 20% off = $80 → 10% off = $72. The effective total discount is 28%, not 30%.
What is the difference between markdown and discount?
In retail, a "markdown" is a permanent price reduction (the new price becomes the regular price), while a "discount" is a temporary reduction. For calculation purposes, both use the same formula.
How do I find the original price after tax has been added?
Use Mode C with the tax percentage as the "discount" input, but note that tax is added (not subtracted). For tax removal, use the VAT/Tax Calculator on this site, which has a dedicated "remove tax" mode.
Can I calculate more than 100% discount?
A 100% discount means the item is free (final price = $0). Values above 100% are mathematically invalid for a standard discount and are not allowed in this calculator.