Instantly calculate percentages or values by entering any two numbers
This free percentage calculator helps you instantly solve three main types of problems:
Designed for speed, simplicity, and accuracy, this tool works perfectly on all devices and supports rounding, decimal values, and copy-to-clipboard features.
Percentages are everywhere — in finance, education, shopping, business, and health. They help you compare values regardless of scale. This tool allows you to calculate them instantly, so you can make quick and smart decisions.
From figuring out your grade percentage to understanding profit margins or price increases, this tool covers all scenarios with ease.
Want the formulas explained step by step? Read How to Calculate Percentage: Formula and Examples, Percentage Increase and Decrease Formula & Examples, or How to Calculate a Discount Percentage on our blog.
Divide the smaller number by the larger number, then multiply by 100. Example, 25 out of 200: (25 ÷ 200) × 100 = 12.5%.
Subtract the old value from the new value, divide by the old value, and multiply by 100: ((New - Old) ÷ Old) × 100.
Multiply 80 by 15 and divide by 100: 80 × 15 ÷ 100 = 12.
No. All calculations happen entirely in your browser. The values you enter are never sent to our server or saved.
We're always working to improve this calculator and make it more helpful for everyone.
If you have ideas for new features, improvements, or notice something that could be better, w'd love to hear your thoughts.
Your input helps shape future updates and keeps the tool simple, fast, and accurate for all users.