Money calculators
Discount calculator
Work out the final price and total saving from a percentage, an optional extra percentage and a fixed discount amount.
Runs in your browser with no account and no stored data
How it works
Enter the original price, choose a quick discount preset or type your own percentage. Add an extra percentage on top and a fixed amount off if your offer stacks them. The final price and total saving update as you type.
After % off: price × (1 − pct ÷ 100). After extra %: previous × (1 − extra ÷ 100). Final = result − fixed amount, never below 0. Total discount % = (original − final) ÷ original × 100.
Original 1,000 with 20% off → 800. Extra 10% off → 720. Fixed 50 off → 670. Total saved: 330 (33%).
Sale price checks, stacking a coupon on top of a sale, comparing two offers on the same item, or working out the real saving when a 'today only' deal is layered with a member discount.
What do you want to do next?
Add VAT or jump to the percentage calculator to compare the final price against another offer.
Need to work out VAT on the final price too? Open the VAT calculator
FAQ
How are stacked discounts calculated?+
The first percentage is taken off the original price. The extra percentage is then taken off the already-discounted price, and the fixed amount is subtracted last.
Why is 20% then 10% not the same as 30% off?+
Stacked percentages apply to a smaller running total each step. 20% + 10% on 100 gives 72, while a single 30% gives 70.
Can the final price go below zero?+
No. If the fixed discount is larger than the remaining price, the final price is capped at 0.
What happens with empty optional fields?+
Empty extra percentage and fixed discount fields are treated as 0 and have no effect on the result.
Does this include tax?+
No. The calculator works on the price you enter. If you need to add or remove VAT, use the VAT calculator on the final price.