Discount Calculator
Find the final price after any discount and see how much you save.
🛍️ To stack two discounts, calculate the first discount, then use the result as the new original price.
How to Calculate a Discount
A discount reduces an item's original price by a percentage. To find the sale price, multiply the original by (1 − discount%). For example, a $80 shirt at 25% off: 80 × (1 − 0.25) = 80 × 0.75 = $60. You save $20.
Common Discount Patterns
- Percentage off: 20%, 30%, 50% — the most common type
- Buy one get one (BOGO): Effectively 50% off per item
- Fixed amount off: $10 off any purchase over $50
- Stacked discounts: Multiple discounts applied in sequence
How Stacked Discounts Work
When stores offer "an extra 20% off already reduced items," the second discount applies to the already-discounted price, not the original. A $100 item first marked down 30% becomes $70. An additional 20% off applies to $70, giving $56 — a total savings of 44%, not 50%. Use this calculator twice (once per discount) to handle stacked discounts correctly.
Reverse Discount: Find the Original Price
If you only know the sale price and the discount percentage, you can find the original price by dividing: original = sale price ÷ (1 − discount%). For example, if an item costs $60 after a 25% discount, the original was 60 ÷ 0.75 = $80.
Is the Deal Actually Good?
Not all discounts are equal. Watch out for:
- Inflated original prices: Some retailers raise the "was" price to make the discount look bigger
- Minimum purchase requirements: "Save 30% when you spend $100" may push you to overspend
- Compare unit prices: A discounted large size may still cost more per ounce than a full-price small size
Frequently Asked Questions
How do I calculate 50% off?
Just halve the price. 50% off means you pay half — the simplest discount to calculate.
How do I add two discounts together?
You don't add them directly. Apply the first discount to get the new price, then apply the second discount to that new price. Two 30% discounts give a total of 51% off, not 60%.
What does "percent off" mean?
It's the percentage by which the original price is reduced. 30% off means you pay 70% of the original price.
About the Discount Calculator
The Discount Calculator lets you figure out discount calculatorinstantly, without reaching for a spreadsheet or doing the math by hand. Whether you're planning a budget, checking a loan, or working through homework, the tool applies the correct formula behind the scenes and shows the result the moment you enter your numbers.
Unlike a static chart or table, this calculator adapts to your exact inputs. You can adjust any value and see the outcome update in real time, which makes it easy to compare scenarios — for example, "what if the rate were 1% lower?" or "what if I paid an extra $50 a month?"
How to Use This Tool
- Enter the main values the calculator asks for (for example, amount, rate, and time).
- Pick the right unit or option where the tool offers a choice.
- Read the result, which appears instantly below the inputs.
- Adjust any field to test a different scenario — the answer updates without a reload.
- Copy or note the result. Nothing is stored, so close the tab when you're done.
Why Use an Online Calculator?
Browser-based tools like this one have a few real advantages over installed software or manual methods:
- No installation. It opens instantly in any browser, on any operating system.
- Private by default. Everything runs locally, so your data stays on your device.
- Always up to date.There's nothing to update — you always get the latest version when you load the page.
- Free and unlimited. Use it as often as you like, with no account and no caps.
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