OneConvertWe make converting easy

Conversion Calculator Online and Free File Converter

Start your conversion for a large and various number of documents and units of measurement. And it is completely free and unlimited.

A tool that seems ahead of its time

Powerful, free and self-serve tools to help you convert anything just in few clicks. Trusted by over thousands users worldwide.

Extensive tools collection
OneConvert offers various tools for unit conversion and PDF file conversion. These tools are especially useful for professionals in engineering, finance, and science.
Accurate and instant results
We guarantee accurate results, which is essential for tasks that require accuracy, such as scientific calculations, engineering projects. Alternatively, you can use these tools for regular, everyday tasks.
Support for all devices
Our free file converter works on any OS, including Windows, Mac, and Linux. This means you can convert files from any operating system or device, provided you have an internet connection
Security guaranteed
Communication with our servers is securely encrypted using SSL and careful attention to service availability allows us to continuously beat > 99.5% monthly uptime.
Easy to use & share files
Our service provides sharing files across social networks, your devices and the cloud platforms with a few clicks. You can convert files on PC version and then send them directly to your phone using the website by QR Code.
Automatic deletion of your files
After the document conversations, you’ll be able to download and delete your files. If you happen to forget about deleting your files, they will be deleted from our server automatically after 3 hours to ensure your information is secure.
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Trusted by the enterprise companies

OneConvert is a trusted partner of major enterprises, renowned for our commitment to quality and innovation. Our collaborations with industry leaders underscore our reliability and expertise.