Percentage Calculator
Work out percentages in any direction — what percent one number is of another, a percentage of a number, or a percentage increase/decrease. Useful for discounts, tips, grades, and salary changes.
Inputs explained
- Mode — Pick what you want to find: "What % is A of B", "A% of B", or a percentage increase/decrease between two numbers.
- Value A — The first number. Its meaning depends on the mode — e.g. the part, the percentage, or the starting value.
- Value B — The second number — e.g. the whole/total, or the ending value you are comparing against.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: If A = 25 and B = 200 in "What % is A of B" mode, the answer is 12.5%.
Frequently asked questions
Is the Percentage Calculator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Mode, Value A, Value B. Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Percentage Calculator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.