Percentage Calculator
Calculate percentages, increases, and decreases easily.
Enter Values
A
B
What is A% of B?
-
A is what % of B?
-%
Change from A to B
-%
The Ultimate Guide to Percentages (Offline)
Percentages are everywhere. From the '30% OFF' sale to the 20% tip at dinner, understanding how to calculate them is a superpower. UnitMaster makes it simple and private.
100% Private Math
All calculations happen in your browser. No data is sent to a server, making it faster and more secure than cloud calculators.
Instant Results
Calculate percentage increase, decrease, or difference instantly as you type.
Visual Explanations
Understand the formula behind the numbers. We show you the math so you can learn.
Why choose UnitMaster?
- Calculate discounts instantly.
- Figure out tax rates.
- Determine stock growth.
- Split bills and tips.