Convert seven groups of units
Free: Convert length, mass, temperature, area, volume, speed and digital storage with the conversion relationship shown below the result.
All tools
Seven everyday conversion categories
Free Online Unit Converter
Free: Convert length, weight, temperature, area, volume, speed and data units online with instant synchronized results.
Runs locally in your browserSelect units and enter a value
Choose a category, source unit and target unit, enter the value, and use the swap button when you want to reverse the direction.
Method and sources
Conversions use fixed factors stored in the local tool module. Temperature uses formula-based conversion, and digital storage uses binary 1024-based units.
Frequently asked questions
What can Free Online Unit Converter do?
Free: Convert length, mass, temperature, area, volume, speed and digital storage with the conversion relationship shown below the result.
How do I use Free Online Unit Converter?
Choose a category, source unit and target unit, enter the value, and use the swap button when you want to reverse the direction.
Does Free Online Unit Converter upload my data?
The tool runs in your browser. Your selected files, entered content and generated results are not sent to Zituo Tools.