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CALCULATOR / SHOPPING

Free Discount Calculator

Work out the sale price, how much you save and the percentage off. Add a second discount or sales tax, or go backwards to find the original price.

Three modes in one tool: find the sale price, find the percentage off, or find the original price.

✓ Free to use · No signup required · Processed in your browser
Discount Calculator workspace
CHOOSE A MODE · ENTER PRICES · SEE YOUR SAVINGS
● READY TO USE
Enter the original price and the discount.
DISCOUNT WORKSPACEMOSANKIT / CALCULATORS
THE BASICS

What Is a Discount Calculator?

A discount calculator tells you the price after a percentage off, and how much money that saves. It is useful during sales, when comparing offers, or when you need the final price including tax.

It can also work backwards: if you know the sale price and the percentage taken off, it finds what the item cost before the discount.

BUILT FOR THE JOB

Key Features of MoSanKit Discount Calculator

%

Sale Price

Enter the original price and the discount to get the final price.

−

Amount Saved

See exactly how much money you save.

↺

Find the % Off

Know the percentage discount from an original and a sale price.

⇤

Find the Original Price

Work backwards from the sale price.

+%

Extra Discount and Tax

Stack a second discount and add sales tax or VAT.

◎

Private by Design

Everything stays in your browser.

QUICK AND SIMPLE

How to Calculate a Discount

01 / MODE

Choose what to find

Sale price, percentage off or original price.

02 / ENTER

Enter the numbers

Fill in the prices and percentages.

03 / EXTRAS

Add extras (optional)

A second discount or tax in sale-price mode.

04 / READ

Read your result

See the price, the saving and the detail.

MADE FOR EVERYDAY WORK

Who Can Use This Tool?

ShoppersCheck whether a sale is a good deal.
RetailersSet and check sale prices.
Small Business OwnersPrice promotions quickly.
StudentsPractise percentage problems.
Bargain HuntersCompare stacked offers.
AccountantsWork out net and gross prices.
GOOD TO KNOW

A few things, answered.

Quick answers about using the MoSanKit Discount Calculator.

Sale price = original price × (1 − discount ÷ 100). A 25% discount on $80 is $80 × 0.75 = $60.

They are applied one after the other, not added together. 20% then 10% off is 28% off in total, not 30%, because the second discount applies to the already-reduced price.

This calculator applies tax after the discounts, which is how most shops charge it. Rules differ in some places.

Switch to "Find the original price", enter the sale price and the percentage off: original = sale price ÷ (1 − discount ÷ 100).

The calculator tells you it is a price increase and shows by how much.

No. Everything is calculated in your browser.

See the real price
before you buy.

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