Browser utility · No upload
Percentage Calculator
Calculate percentages, percentage change, discounts, and tips — free, private, and instant.
Runs locally in your browser — your input is never uploaded or stored.
About this tool
Percentage Calculator lets you calculate percentages, percentage change, discounts, and tips without installing an app or creating an account. Answer everyday percentage questions with clear, instant results.
Work out a sale price, a restaurant tip, a test score, or the percentage increase between two numbers without setting up the formula yourself.
How it works
- Enter or choose your values
- Review the instant result
- Copy or download the result
Frequently asked questions
How do I use Percentage Calculator?
Enter or choose your input in the tool above. The result updates immediately or appears when you select the action, ready to copy or download.
Can it calculate percentage increase and decrease?
Yes. Enter the original and new values and it shows the percentage change, including whether it went up or down.
Is Percentage Calculator free, and is my data private?
Yes. Percentage Calculator is free with no account or watermark, and it runs entirely in your browser so your input is never uploaded, stored, or shared.
Does it work on phones and tablets?
Yes. It works in current browsers on Android, iPhone, iPad, Windows, macOS, and Linux.