Discount Calculator
Calculate original price, discount, savings, and final price from any two values directly in your browser.
Calculate a discount
Edit any two fields. The two most recently changed fields are inputs.
Result
Enter any two values. The other values are calculated automatically.
Calculation steps
Enter any two values. The other values are calculated automatically.
Good to know
Good to know
The discount calculator automatically calculates the remaining two values directly in your browser from any two chosen values — original price, discount rate, discount amount, or final price. The two most recently changed fields count as input, all others are recalculated live.
Typical searches include calculate discount, percent off, and calculate final price. Calculation runs locally in the browser with a visible calculation path. Check whether taxes, shipping, or fees are applied before or after the discount, since this affects the result.
Typical use cases
Calculate the final price from original price and discount
Enter the original price and discount rate to instantly see the final price and savings, without any mental math.
Determine the original discount rate from two prices
Enter the original and final price to find out which discount rate was actually granted.
Tips for better results
Check the order of tax and discount
Whether tax is calculated before or after the discount can affect the final price — check this separately on receipts or invoices.
Use any two fields as input
The two most recently edited fields count as input — so you can flexibly calculate from price-to-price or price-to-percent.
How it works
How it works
Step by step
Features
Features
Four interchangeable fields
Original price, discount, discount amount, and final price can be freely used as input or result.
Calculation path and summary
A plain-language sentence summarizes the result, in addition to the visible calculation path.
Local calculation
Calculation happens directly in the browser, without transmission to a server.
Frequently asked questions
Frequently asked questions
Which values can I use as input?
Any two of the four values: original price, discount rate, discount amount, or final price — the rest are calculated automatically.
Are my inputs uploaded?
No. Calculation runs entirely locally in the browser.
More tools
More tools
Multiple Discount Calculator
Apply multiple percentage and fixed discounts in sequence with final price, savings, effective discount, and every intermediate step.
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Calculate the starting value, final value, and percentage change directly in your browser. Increases, decreases, and reverse calculations work without switching modes.
Tip Calculator
Calculate tip, total, and exact per-person split from a percentage, fixed amount, or target total.