Discount Calculator
Calculate the final price, discount amount, and savings from any percentage off.
Discount details
Enter the original price, discount, optional coupon, tax, and quantity.
Price before any discount or coupon.
Percentage discount shown on the sale or offer.
Optional fixed amount off after the percentage discount.
Optional tax added after the discount.
Number of identical items to include in the total.
Discount result dashboard
Sale price summary
Sale price
£170.00
Price after discount and coupon, before tax.
You save
£30.00
15% effective discount per item.
Final price
£170.00
Final price per item after optional tax.
Checkout total
£170.00
Total for 1 item.
Total savings
£30.00
Total discount savings for the selected quantity.
Tax amount
£0.00
0% tax applied after discount.
Original total
£200.00
Original price multiplied by quantity.
Effective discount
15%
Percentage saved after percentage discount and coupon.
Export
Save or share this discount estimate
Copy the summary, copy the formula, download CSV, or print a compact result.
Price breakdown
How the final price is calculated
| Original price | £200.00 |
|---|---|
| Percentage discount | − £30.00 |
| Coupon amount | − £0.00 |
| Sale price before tax | £170.00 |
| Tax | + £0.00 |
| Final price per item | £170.00 |
Formula example: £200.00 × 15% = £30.00 off. Sale price before tax: £200.00 − £30.00 − £0.00 = £170.00.
Interpretation
What this discount result means
Sale price
The price after the percentage discount and fixed coupon is £170.00 before tax.
Savings
You save £30.00 per item, or £30.00 for 1 item.
Tax and total
With 0% tax, the estimated checkout total is £170.00.
Effective discount
The combined percentage discount and coupon equals about 15% off the original price.
Formula
Discount formula explanation
Example using your inputs: 15% off £200.00 saves £30.00, making the sale price £170.00 before tax.
Discount amount
Discount = Price × Discount % ÷ 100
Use this to find how much money is removed from the original price.
Sale price
Sale Price = Price − Discount − Coupon
Use this to calculate the price after percentage and fixed-amount discounts.
Final price
Final Price = Sale Price + Tax
Use this when tax is added after the discount is applied.
Basics
How discount calculations work
Percentage off
A percentage discount removes a share of the original price, such as 15% off.
Coupon amount
A fixed coupon removes a set amount after the percentage discount in this calculator.
Tax after discount
Optional tax is calculated on the discounted price, not the original price.
Quantity total
Quantity multiplies the savings, tax, and checkout total for identical items.
Use cases
Common discount calculator use cases
Shopping sales
Check sale price, amount saved, and final checkout total before buying.
Coupon stacking
Estimate a fixed coupon after a percentage discount.
Tax estimates
Add sales tax or VAT-style percentage charges after discount.
Price comparison
Compare deal quality using effective discount rate and total savings.
Budget planning
Estimate multi-item totals before checkout.
Promotion checks
Verify advertised percent-off offers and savings amounts.
Trust
About this discount estimate
Formula based
Uses standard percentage discount and price-after-discount formulas.
Estimate only
Retailer rules, taxes, coupons, fees, and rounding can change the real checkout amount.
Easy to verify
The breakdown and formula show exactly how the sale price and savings are calculated.
FAQ
Discount calculator questions
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