About Us

Free online unit conversion — no sign-up, nothing stored on our servers.

Unit Converter is a free tool for converting between units of measurement quickly and accurately. It covers 20 categories — from everyday needs like length, weight, temperature, and volume to technical units for pressure, energy, power, torque, and data transfer — with hundreds of individual units in total.

What makes it different

Every calculation runs entirely inside your browser. There are no accounts to create and nothing you type is sent to a server. The site is supported by unobtrusive advertising. That means it is fast, it works offline once loaded, and your inputs stay on your own device.

Accuracy

Conversions are based on internationally recognised SI definitions and standard conversion factors. Temperature and fuel-economy conversions use exact formulas rather than simple multipliers. While we work hard to keep every factor correct, results are provided for general reference and should be independently verified for engineering, medical, financial, or other critical applications.

Contact & Feedback

Spotted a unit we are missing or a factor that looks off? We would love to hear about it so we can keep improving the tool. You can reach us any time at hbatchi2002@gmail.com.