Discount Calculator
Instantly find the sale price, the dollars you save, and the final out-the-door total after sales tax from any percentage-off deal. Perfect for checking whether a sale, coupon, or clearance tag is really the bargain it looks like.
How to Use
- Enter the original (list) price of the item.
- Enter the discount percentage shown on the tag or coupon (e.g. 25 for 25% off).
- Optionally enter your sales tax rate to see the real out-the-door price.
- Read the sale price, the amount you save, and the final total with tax.
- Tap a preset to load a common scenario, then tweak the numbers for your own deal.
Show Work
Formula
About the Discount Calculator
The Discount Calculator gives you a fast, free answer for personal-finance and money decisions without sending anything off your device. Instantly find the sale price, the dollars you save, and the final out-the-door total after sales tax from any percentage-off deal. Perfect for checking whether a sale, coupon, or clearance tag is really the bargain it looks like.
How it works
Enter your figures and the result appears instantly, updating the moment you change anything. There is no submit button and nothing to wait for, so it is easy to try a few what-if numbers and compare the results. Just check each box holds the kind of value it expects.
Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.
Frequently Asked Questions
How is the sale price calculated?
Sale price = original price × (1 − discount%). A 25% discount means you pay 75% of the original, so a $79.99 item costs about $59.99. The amount you save is simply the original price minus the sale price.
Is the discount applied before or after sales tax?
Sales tax is normally charged on the discounted price, not the original — you only pay tax on what you actually spend. This calculator follows that order: it subtracts the discount first, then applies tax to the lower amount, giving you the true out-the-door total.
How do I combine two discounts, like 20% off then an extra 10%?
Stacked discounts are multiplicative, not additive: 20% off then an extra 10% is not 30% off. Apply the first to get 80% of the price, then take 90% of that, which equals 72% of the original — a 28% total discount. Run it in two steps here to see the real combined price.
What does the savings amount actually tell me?
It is the dollar difference between the original and sale price — useful for judging whether a percentage sounds better than it is. A 50% discount on a $20 item saves $10, while 15% off a $1,200 purchase saves $180, so the dollar figure often matters more than the headline percentage.
Why does a sale price still feel expensive after tax?
Sales tax is added on top of the discounted price, so a 25% sale plus an 8% tax leaves you paying about 81% of the original sticker. Entering your local tax rate shows the number that actually hits your card, which is usually higher than the bare sale price.
How do I use the Discount Calculator?
Simply type your numbers and read the result, which refreshes the instant you change something. There is nothing to submit and nothing to wait for.
Does it cost anything or need an account?
No. The tool is completely free, there is no account to create, and it keeps working offline after the page first loads.
Is anything I type uploaded?
No. The tool works entirely on your device, so the values you enter never leave your browser.
Common Use Cases
Checking a store sale
Confirm the real price of a "25% off" tag before deciding whether it is worth buying.
Out-the-door budgeting
Add your local sales tax to see exactly what a discounted purchase will cost at the register.
Comparing two deals
Run both offers to see which percentage actually saves more in real dollars on each item.
Stacking coupons
Apply discounts in sequence to find the true combined price when a coupon stacks on a sale.
Big-ticket purchases
See how even a modest percentage off a furniture or electronics price translates into meaningful savings.
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