Unit Converter & Percentage Calculator

Percentage Calculator

From:

From Unit:

To:

To Unit:

Common Conversions

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About Convertathon

Convertathon.com is a free online unit converter that provides over 30 different conversion tools. Whether you need to convert length, weight, temperature, area, volume, or calculate percentages, we've got you covered.

Our tools are designed to be easy to use for everyone, from everyday users to professionals in various trades. All conversions happen instantly and are calculated with high precision.

The website is also available as a downloadable app, allowing you to perform conversions even when you're offline.

Why Choose Convertathon?

Over 30 different conversion tools in one place
Easy-to-use interface with instant results
Accurate conversions with high precision
Works offline when installed as an app
Designed for both everyday users and professionals
Completely free to use

Popular Conversion Tools

Our most popular conversion tools include:

Percentage Calculator - Calculate percentages, percentage changes, and more
Length Converter - Convert between meters, feet, inches, and more
Weight Converter - Convert between kilograms, pounds, ounces, and more
Temperature Converter - Convert between Celsius, Fahrenheit, and Kelvin
Area Converter - Convert between square meters, square feet, acres, and more
Volume Converter - Convert between liters, gallons, cubic meters, and more

Recommended Measurement Tools

These precision tools can help with your measurement needs:

Frequently Asked Questions

How accurate are the conversions on Convertathon?

All conversions on Convertathon are calculated with high precision using standard conversion formulas and factors. Our calculations are accurate to at least 6 decimal places where applicable.

Can I use Convertathon offline?

Yes! Convertathon is available as a Progressive Web App (PWA), which means you can install it on your device and use it even when you're offline. Simply click the "Download App" button to get started.

Is Convertathon free to use?

Yes, Convertathon is completely free to use. There are no hidden fees or premium features that require payment.

How do I calculate a percentage in Convertathon?

Our percentage calculator allows you to perform various percentage calculations, including finding what is X% of Y, determining what percentage X is of Y, calculating percentage changes, and adding or subtracting percentages from values.

Can I use Convertathon for professional work?

Absolutely! Convertathon is designed to be useful for both everyday users and professionals in various trades. Our conversion tools provide accurate results that can be used for professional work.