Choose a Percentage Calculation
Select whether you need percent of a number, percentage change, or percentage difference. The percentage calculator online supports the most common percent math tasks.
Percentage Calculator
Use this percentage calculator online to solve common percent math: find a percentage of a number, calculate percentage increase or decrease, compare two values, and work out percentage difference for shopping, reports, grades, and everyday planning.
Workspace
Use the tool below. Your inputs stay local when the tool supports browser-only processing.
What is X% of Y?
Workflow
How to use the Percentage Calculator
Enter Your Numbers
Fill in the values for your calculation and the result appears instantly. The percentage calculator online also shows the formula so the answer is easy to understand.
Use the Result
Apply the percentage result to budgets, grades, growth rates, discounts, reports, or everyday math. You can clear the fields and run another calculation right away.
Percentage Calculator — Frequently Asked Questions
What can this percentage calculator online solve?
It can find a percentage of a number, calculate percentage increase or decrease, compare two values, and solve common percentage formulas used in school, work, and shopping.
Is the percentage calculator online free?
Yes. The calculator is free, runs in your browser, and does not require an account or upload any data.